Muwatta Malik Book 6, Hadith 8
Yahya related to me from Malik from Hisham ibn Urwa from his
father that Dhakwan Abu Amr (a slave belonging to A'isha, the wife of
the Prophet, may Allah bless him and grant him peace, who was freed by
her after her death) used to stand in prayer and recite for her in
Ramadan.
Yahya related to me from Malik that Abdullah ibn Abi Bakr said, "I heard my father say, 'We finished praying in Ramadan and the servants hurried with the food, fearing the approach of dawn.' "
Yahya related to me from Malik from Muhammad ibn al-Munkadir from Said ibn al-Jubayr that a man who has approval (as a relater of hadith), told him that A'isha, the wife of the Prophet, may Allah bless him and grant him peace, said, "If a man prays in the night and sleep overcomes him during it, Allah writes for him the reward of his prayer, and his sleep is sadaqa for him."