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. "
سُئِلَ ابْنُ عَبَّاسٍ مِثْلُ مَنْ أَنْتَ حِينَ قُبِضَ النَّبِيُّ ﷺ قَالَ أَنَا يَوْمَئِذٍ مَخْتُونٌ قَالَ وَكَانُوا لاَ يَخْتِنُونَ الرَّجُلَ حَتَّى يُدْرِكَ