Musnad Ahmad

It is narrated from Sayyiduna Ibn Amr (may Allah be pleased with him) that (I saw the Noble Prophet ﷺ standing on his mount in the plain of Mina, when) a man came and said, "O Messenger of Allah! I had my head shaved before performing the stoning (rami)?" The Noble Prophet ﷺ said: "Go and perform the stoning, there is no harm." Another man came and said, "O Messenger of Allah! I thought that the sacrifice comes before the stoning, so I performed the sacrifice before the stoning?" The Noble Prophet ﷺ said: "Now go and perform the stoning, there is no harm."