It is narrated from Sayyiduna Abdur Rahman bin Abi Bakr (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) said to him: "Ride this she-camel, seat your sister behind you, and when you descend from the hillocks of Tan‘eem, recite the Talbiyah and enter into Ihram, then return, that is, perform ‘Umrah." This incident took place on the night of departure (Laylat al-Sadr).