Yahya related to me from Malik from Jafar ibn Muhammad ibn AIi
from his father that Jabir ibn Abdullah said, "I heard the Messenger
of Allah, may Allah bless him and grant him peace, say as he left the
mosque, intending to go to Safa, 'We begin with that with which Allah
began,' and he began with Safa."
Muwatta Malik Book 20, Hadith 130