(27) بَابُ سُؤَالِ الْمُشْرِكِينَ أَنْ يُرِيَهُمُ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ آيَةً فَأَرَاهُمُ انْشِقَاقَ الْقَمَرِ
Narrated Ibn `Abbas:
The moon was split into two parts during the lifetime of the Prophet.
Reference: Sahih al-Bukhari 3638
In-book reference: Book 61, Hadith 142
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 4, Book 56, Hadith 832