From Sahih Muslim (Hadith 3152):
Anas b. Malik (Allah be pleased wish him) reported that Allah's Messenger (ﷺ) came to Mina; he went to the Jamra and threw pebbles at it, after which he went to his lodging in Mina, and sacrificed the animal. He then called for a barber and, turning his right side to him, let him shave him; after which he tiimed his left side. He then gave (these hair) to the people
Reference: Muslim 3152