Musannaf Ibn Abi Shaybah 34054 — Reports on the affair of Dawud

Thabit al-Bunani said: It has reached us that the Prophet of Allah Dawud (peace be upon him) had divided the prayer among the women of his household and his children, so that there was no hour of the night or day in which someone from the family of Dawud was not praying. So this verse came concerning them: "Work, O family of Dawud, in gratitude; and few of My servants are grateful." [Saba: 13]