Ikrimah (may Allah have mercy on him) narrates from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) arrived, and some young boys of Banu Abd al-Muttalib came out to meet him. He placed one in front of him and another behind him.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 10372