Hadithcore
Musnad Ahmad 2421
graded· 1734

It was narrated from Ibn ‘Abbas (رضي الله عنه) that

The Messenger of Allah (ﷺ) said concerning changing the order in which stoning the Jamrah, slaughtering the sacrifice and shaving the head are done: “There is no problem.”

References1 variant
Arabic/English book
Book 25, Hadith 2421