Yahya related to me from Malik from Hisham ibn Urwa that Fatima
bint al-Mundhir told him that she used to see Asma bint Abi Bakrat
Muzdalifa telling whoever led the subh prayer for her and her
companions to pray it as soon as the dawn broke, after which she would
mount and go to Mina without stopping at all.
Muwatta Malik Book 20, Hadith 187