Sayyidina Abdullah ibn Amr (RA) narrated that a man asked Allah’s Messenger ﷺ , “I have shaved before the sacrifice.” He said, “Sacrifice now. There is no harm (or sin).” Another asked, “I have sacrificed before I cast pebbles.” He said, “Cast them now, and there is no harm (or sin).” [Ahmed6499, Bukhari 83, 1736, Abu Dawud 2014, Ibn e Majah 3051, Muslim 1306]