It is narrated from Sayyiduna Jabir bin Abdullah, may Allah be pleased with him, that I heard the Messenger of Allah, peace and blessings be upon him, say when he came out of Masjid al-Haram towards Safa: "We begin with that which Allah, Glorified and Exalted is He, began with." So the Prophet, peace and blessings be upon him, began the Sa'i from Safa.