(51) باب الْخِتَانِ بَعْدَ الْكِبَرِ وَنَتْفِ الإِبْطِ
Narrated Abu Huraira:
Allah's Messenger (ﷺ) said "The Prophet) Abraham circumcised himself after he had passed the age of eighty years and he circumcised himself with an adze." (FR)
Reference (FR): Sahih al-Bukhari 6298 (FR)
In-book reference (FR): Book 79, Hadith 70 (FR)
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 8, Book 74, Hadith 313 (FR)