Musannaf Ibn Abi Shaybah 15326 — Those who ordered the teaching

It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that a Bedouin came to the Messenger (peace and blessings be upon him) and said: "O son of Banu Abd al-Muttalib, peace be upon you." He (peace and blessings be upon him) replied: "And upon you." Then the Bedouin said: "I am from your maternal relatives, the tribe of Banu Sa'd bin Bakr (this tribe were his foster maternal uncles), and I am the messenger of my people to you and their delegate. I am going to adjure you and ask you, and you alone must answer this oath and this question." He (peace and blessings be upon him) said: "O brother of Banu Sa'd, go ahead and ask." (That is, because of the kinship he made no distinction between himself and this man.) He said: "We have found in your book (letter), and your messengers have ordered us, that we should perform Hajj to the House. I adjure you: did you order us to do this?" He (peace and blessings be upon him) said: "Yes."