Jabirbin 'Abdullah said:
"The Messenger of Allah (ﷺ) sat in Mina,onthe Day of Sacrifice, for the people (to come and speak to him). Aman came to him and said: 'O Messenger of Allah, I shaved my headbefore I slaughtered my sacrifice.' He said: 'There is no harm inthat.' Then another man came and said: 'O Messenger of Allah, Islaughtered my sacrifice before I stoned (the Pillar).' He said:'There is no harm in that.' And he was not asked that day aboutanything being done before another but he replied: 'There is noharmin that.'" (ES)
English reference (ES): Vol. 4, Book 25, Hadith 3052 (ES)
Arabic reference (ES): Book 25, Hadith 3168 (ES)