Was Prophet Abraham (AS) the first person to see grey hair (become old), the first person to trim moustach, and the first person who got circumcised?

There is a report from Saeed bin ibn al-Musayyub in Malik's Muwatta that states the following:- > Yahya related to me from Malik from Yahya ibn Said that Said ibn > al-Musayyub said, **"Ibrahim, may Allah bless him and grant him peace, > was the first to give hospitality to the guest and the first person to > be circumcised and the first person to trim the moustache and the > first person to see grey hair.** He said, 'O Lord! What is this?' > Allah the Blessed, the Exalted, said, 'It is dignity, Ibrahim.' He > said, 'Lord, increase me in dignity!' " > > Yahya said that he had heard Malik say, "One takes from the moustache > until the edge of the lip appears, that is the rim. One does not cut > if off completely so that one mutilates oneself." - [Muwatta Malik, Book > 49, Hadith 1677](https://sunnah.com/urn/516560) **Can someone please explain me the highlighted part of this narration?**