Some miracle-claims become weaker the more they are exaggerated. This report is different: its strength lies in being stated plainly, transmitted in the most rigorously accepted Sunni collections, and tied to a public military setting at Khaybar.
The argument, as its proponents put it, is this: the Prophet Muhammad (PBUH) announced that the banner would be given to a man who loves Allah and His Messenger and is loved by Allah and His Messenger. Ali ibn Abi Talib was then summoned while suffering from painful eye inflammation. The Prophet (PBUH) applied his saliva, prayed for him, and Ali was immediately healed, as though he had never been ill. He then received the banner in the campaign of Khaybar.
The report itself
Sahl ibn Sa'd reported that on the day of Khaybar, the Messenger of Allah (PBUH) said: "Tomorrow I will give this banner to a man at whose hands Allah will grant victory. He loves Allah and His Messenger, and Allah and His Messenger love him." The people spent that night wondering which of them would be given it. In the morning, they came to the Messenger of Allah (PBUH), each hoping to be given it. He said: "Where is Ali ibn Abi Talib?" They said: "He is suffering from his eyes." He said: "Send for him." Ali was brought, and the Prophet (PBUH) applied saliva to his eyes and supplicated for him, and he was healed as if he had no ailment. Then he gave him the banner.
Reported by al-Bukhari in Sahih al-Bukhari in the chapters on jihad and the virtues of Ali, and by Muslim in Sahih Muslim in the virtues of the Companions. Common modern numberings include al-Bukhari 2942 and 3701 and Muslim 2406, though numbering varies by edition. The report is sahih and is agreed upon in the two Sahih collections.
This is not a weak devotional story from a late book of wonders. It is found in both Sahih al-Bukhari and Sahih Muslim, the two most authoritative hadith collections in Sunni Islam. The Companion narrator is Sahl ibn Sa'd al-Sa'idi, a known Companion of the Prophet (PBUH). Sunni scholarship has treated this report as authentic.
Steelman of the argument
The strongest form of the argument is not merely, "A saintly man prayed and someone felt better." It is more specific than that.
- The setting was public. The announcement was made in the context of a military expedition. The Companions spent the night wondering who would receive the banner, and in the morning many hoped for it. This is why some proponents call it a "mass-context" report: the event was embedded in a public scene, not a private room with no social witnesses.
- The healing was tied to a prophetic sign. The Prophet (PBUH) did not simply treat Ali's eyes. He first announced a distinctive honor: the banner would be given to a man loved by Allah and His Messenger, and Allah would grant victory at his hands. Ali was then summoned despite his eye condition.
- The before-and-after contrast is explicit. The report says Ali was suffering from his eyes, then after the Prophet's action and supplication he was cured "as if he had no ailment." The wording presents an immediate and complete change.
- The report comes through the strongest Sunni hadith channels. Al-Bukhari and Muslim did not merely collect inspiring stories; their works were built on strict standards of connected transmission and narrator reliability. For Sunni Muslims, a report agreed upon by al-Bukhari and Muslim is among the strongest forms of hadith evidence.
- The event was not theologically convenient in a narrow tribal sense. The narration honors Ali ibn Abi Talib greatly, but it also says many others hoped for the banner. The report preserves that expectation and then the unexpected selection of Ali, who was initially not even present due to his eye pain.
On this reading, the incident is evidential because the report combines a publicly announced prophetic statement, Ali's stated eye ailment, a direct prophetic supplication and application of saliva, a cure described as immediate and complete, and Ali's subsequent receipt of the banner - while the narration itself is transmitted in sahih form. This is stronger than a private wonder-story, even though it should not be inflated into a claim of mutawatir eyewitness transmission.
What "mass-context" does and does not mean
Care is needed with the phrase "mass-context." It should not be used to imply that this exact healing report is technically mutawatir - that is, transmitted independently by so many chains at every level that collusion on error would be impossible. The narration cited here is authentically transmitted, but the specific wording under discussion is famous through the report of Sahl ibn Sa'd in the canonical collections.
What "mass-context" can fairly mean is that the reported event occurred in a public and memorable setting: a major campaign, a prophetic announcement, the distribution of a war banner, the hopes of leading Companions, the summoning of Ali, and the conquest context of Khaybar. This matters historically because a report set in a well-known campaign, involving prominent Companions and a public banner assignment, has more contextual anchoring than an anonymous private tale. Still, the main evidential weight remains the authenticated isnad and canonical transmission; "mass-context" is a modest contextual point, not a substitute for tawatur. But it is not the same claim as saying, "Hundreds of independent eyewitness reports of the healing have reached us."
The strongest counterargument
A thoughtful skeptic may reply as follows:
First, even if the report is sahih by Sunni standards, that is an internal Islamic classification based on hadith methodology. A non-Muslim historian is not obliged to treat al-Bukhari and Muslim as automatically decisive. Since the collections were compiled generations after the Prophet (PBUH), such a reader may ask how the report circulated before final compilation, whether communal reverence shaped some wording, and whether the same standard would be applied consistently to miracle claims outside Islam.
Second, eye inflammation can vary in severity. Perhaps Ali's condition was painful but temporary, and perhaps it improved naturally. The phrase "as if he had no ailment" could be the narrator's way of describing a rapid improvement, not necessarily a medically impossible event. Saliva has sometimes been used in pre-modern healing practices, and the psychological force of being chosen by the Prophet (PBUH) in a charged military setting may also have affected Ali's sense of pain.
Third, the victory at Khaybar does not by itself prove a miracle. Armies win battles for many reasons: planning, morale, numbers, terrain, and leadership. To say Allah granted victory at Ali's hands is a theological reading of history, not a laboratory demonstration.
This is a serious objection. It should not be dismissed with slogans. Historical miracle claims are not assessed like repeatable lab experiments, and a skeptic who already rules out miracles in principle will not be moved by a hadith report, however strong Muslims consider it.
A careful reply
The Muslim response begins by admitting what the objection gets right: this report is not a modern clinical record, and it does not force belief upon someone who has already decided that divine intervention is impossible. Hadith evidence operates within historical reasoning, not laboratory repetition.
But the objection also faces difficulties. The report is not a vague tale from an anonymous source; it is transmitted through known hadith channels from a named Companion and preserved in the two most rigorously accepted Sunni collections. The surrounding scene is a major public campaign and banner assignment, even if the healing detail is not being claimed here as independently mass-transmitted at every level. The wording does not merely say Ali felt encouraged. It says he had an eye ailment, was summoned despite it, the Prophet (PBUH) applied saliva and prayed, and he was cured as if no ailment remained. Reducing this to ordinary morale or placebo does not fit the report naturally.
Nor is "natural recovery" an especially strong explanation if the report is accepted in its own terms. The point is not simply that Ali recovered at some later time. The report presents an immediate cure at the moment of the Prophet's supplication, followed by Ali receiving the banner. The timing is central. A purely natural explanation must therefore say either that the narrator badly misunderstood the timing, that the description was embellished, or that an unusually fortunate coincidence occurred exactly at a public prophetic moment.
Could a skeptic still choose one of those explanations? Yes. Historical evidence rarely removes every possible alternative. But the question is not, "Can we imagine another explanation?" The question is, "Which explanation best accounts for the data, given one's broader worldview?" If God exists, and if prophethood is possible, then a healing connected to a prophet's prayer is not an absurd explanation. It may be the most coherent one.
What this report establishes
For a Muslim, the report establishes a genuine prophetic sign: Allah honored His Messenger (PBUH) by answering his supplication and healing Ali instantly in a public, consequential moment. It also establishes a major virtue of Ali ibn Abi Talib: he is described by the Prophet (PBUH) as loving Allah and His Messenger and being loved by Allah and His Messenger.
For a non-Muslim or investigating reader, the report establishes a more limited but still important point: the core Sunni hadith corpus preserves a sahih, publicly situated testimony to a miraculous healing associated directly with Prophet Muhammad (PBUH). It is not a marginal later legend in Sunni sources. It belongs to the central hadith record and was taken seriously by generations of exacting hadith scholars. How much further one goes depends on one's assessment of hadith methodology and of the possibility of miracles.
However, it does not establish every Islamic doctrine by itself. It does not function as a standalone mathematical proof of Islam. It does not remove the need to examine the Qur'an, the Prophet's life, his character, fulfilled prophecies, the preservation of revelation, and the wider cumulative case. It also should not be misused for sectarian triumphalism. Sunni Muslims love and honor Ali, and this hadith is among the clearest reports of his excellence; but the hadith's main point is prophetic truth and divine favor, not partisan polemics.
The philosophical point
The deeper issue is philosophical. If a person begins with the assumption that miracles cannot happen, then no historical report will ever be enough. Every miracle report will be reinterpreted as exaggeration, coincidence, error, or fraud. But that assumption is not a historical conclusion; it is a metaphysical commitment.
Islam asks the reader to consider a different possibility: the Creator who brought the universe into existence is able to act within it. If He sends messengers, it is reasonable that He may support them with signs. In that framework, the healing of Ali's eyes before Khaybar is not an isolated wonder-story. It is one sign among many pointing to the truthfulness of the Prophet Muhammad (PBUH).
The honest conclusion is balanced: this report is sahih in Sunni hadith criticism, rooted in a Companion narration about an early public event, serious, and evidentially meaningful. It does not compel faith by force, but it gives a thoughtful reader a strong reason to take the prophetic claims of Muhammad (PBUH) seriously.