Genesis 17:23 NIV
23 On that very day Abraham took his son Ishmael and all those born in his household or bought with his money, every male in his household, and circumcised them, as God told him. 24 Abraham was ninety-nine years old when he was circumcised, 25 and his son Ishmael was thirteen; 26 Abraham and his son Ishmael were both circumcised on that very day.
In another incident the men of Shechem became incapacitated for some time after they had been circumcised.
Genesis 34:24 NIV
24 All the men who went out of the city gate agreed with Hamor and his son Shechem, and every male in the city was circumcised.25 Three days later, while all of them were still in pain,
Again at Gilgal when Joshua circumcised those that had not been circumcised in the wilderness they were also incapacitated for some time.
Joshua 5:2-8 NIV
2 At that time the Lord said to Joshua, “Make flint knives and circumcise the Israelites again.” 3 So Joshua made flint knives and circumcised the Israelites at Gibeath Haaraloth.[b]8 And after the whole nation had been circumcised, they remained where they were in camp until they were healed.
Seeing that all men had been circumcised and incapacitated who circumcised Abraham?