Ibn 'Abbas was asked, "How old were you when the Prophet (ﷺ) died?" He replied. "At that time I had been circumcised." At that time, people did not circumcise the boys till they attained the age of puberty. Sa'id bin Jubair said, "Ibn 'Abbas said, 'When the Prophet died, I had already been circumcised. "
Sahih al-Bukhari Book 79, Hadith 71
← Previous Hadith 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."

Sahih al-Bukhari Book 79, Hadith 70 Next Hadith → Sa'id ibn Jubair said, "Ibn 'Abbas said, 'When the Prophet (ﷺ) died, I had already been circumcised.' "

Sahih al-Bukhari Book 79, Hadith 72