Narrated Anas:
That the Meccan people requested Allah's Messenger (ﷺ) to show them a miracle, and so he showed them the splitting of the moon.
Narrated Anas:
The people of Mecca asked the Prophet (ﷺ) to show them a sign (miracle). So he showed them (the miracle) of the cleaving of the moon.
Narrated `Abdullah bin Masud:
During the lifetime of the Prophet (ﷺ) the moon was split into two parts and on that the Prophet (ﷺ) said, "Bear witness (to thus).
'Utba reported that his father Waqid al-Laithi said: 'Umar b. Khattab asked me what the Messenger of Allah (ﷺ) recited on 'Id day. I said:" The Hour drew near" and Qaf. By the Glorious Qur'an".