Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh))

Bukhari :: Book 6 :: Volume 60 :: Hadith 387

Narrated Ibn Masud:

During the lifetime of Allah's Apostle 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 Apostle said, "Witness this miracle."