Abu Hurairah reported,
The Messenger of Allah ﷺ said, "Ibrahim 
was circumcised when he was eighty years old, using an adze."
Ahmad 9408
Sahihحدثنا قتيبة قال حدثنا المغيرة بن عبد الرحمن القرشي عن أبي الزناد عن الأعرج
عن أبي هريرة قال
قال رسول الله ﷺ اختتن إبراهيم عليه السلام وهو ابن ثمانين سنة بالقدوم
Its isnad is sahih, previously mentioned. Bukhari narrated it, 4/170, in the Beginning of Creation, regarding His saying, "And Allah took Ibrahim as a close friend" [Nisa 4:125], and Muslim, 4/1839, no. 2370, in the Virtues, in the virtues of Ibrahim.9376m - And he said, "The best day on which the sun has risen is Friday. On it Adam was created, on it he was admitted into Paradise, and on it he was expelled from it, and the Hour will not come except on a Friday." Sahih (9376m). Its isnad is sahih, previously mentioned at 9179.