The moon was cleft asunder during the lifetime of the Prophet.
Sahih al-Bukhari Book 65, Hadith 387
← Previous Hadith The moon was cleft asunder while we were in the company of the Prophet, and it became two parts. The Prophet (ﷺ) said, Witness, witness (this miracle).

Sahih al-Bukhari Book 65, Hadith 386 Next Hadith → 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.

Sahih al-Bukhari Book 65, Hadith 388