Sahih Muslim 1306 h
The Book of Pilgrimage
It is permissible to offer the sacrifice before stoning the Jamrah, or to shave before offering the sacrifice or stoning the Jamrah, or to perform Tawaf before any of them
'Abdullah b. 'Amr b. al-As (Allah be pleased with them) said: As Allah's Messenger (ﷺ) was standing near the jamra, a person came to him on the Day of Nahr and said: Messenger of Allah, I got (my head shaved) before throwing pebbles, whereupon he (the Prophet) said: Throw pebbles (now) ; there is no harm in it. Another man (then) came and said: I have sacrificed before throwing the stones. He said: Throw stones (now) and there is no harm. Another came to him and said: I have observed the circumambulation of Ifada of the House before throwing pebbles. He said: Throw pebbles (now) ; there is no harm in it, He (the narrator) said: I did not see that he (the Prophet) was asked about anything on that day, but he said: Do, and there is no harm in it.