During the lifetime of Allah's Messenger (ﷺ) the moon was split into two parts; one part remained over the mountain, and the other part went beyond the mountain. On that, Allah's Messenger (ﷺ) said, "Witness this miracle."
Sahih al-Bukhari Book 65, Hadith 385
← Previous Hadith The first Sura in which a prostration was mentioned, was Sura An-Najm (The Star). Allah's Messenger (ﷺ) prostrated (while reciting it), and everybody behind him prostrated except a man whom I saw taking a hand-full of dust in his hand and prostrated on it. Later I saw that man killed as an infidel, and he was Umaiya bin Khalaf.

Sahih al-Bukhari Book 65, Hadith 384 Next 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