“What did the Messenger of Allah, peace and blessings be upon him, recite on the days of ʿĪd al-Aḍḥā and ʿĪd al-Fiṭr?”
He answered, “On both occasions he would recite:
‘Qāf. By the Glorious Quran’ [Qāf: 1],
and
‘The Hour has drawn near and the moon has split’ [al-Qamar: 1].”

It is self-evident—given ordinary human habit—that had the moon not actually split, the believers themselves would have hastened to deny the claim, let alone his enemies among the disbelievers and the hypocrites. Moreover, it is well known that he was among the most eager of people for others to believe him and follow him; consequently, had the moon not been split, he would never have reported it, recited it publicly to everyone, advanced it as evidence, or presented it as a sign confirming his prophethood.

In the two Ṣaḥīḥ collections it is narrated from Anas ibn Mālik: “The people of Mecca asked the Prophet of Allah, peace and blessings be upon him, to show them a sign, so he showed them the splitting of the moon—twice.”