Abu Dawud Book 27, Hadith Number 4098.
Chapter : Meaning of the verse …or male servents free of physical needs.
Narated By N/A : The tradition mentioned above has also been transmitted by al-Auza’i through a different chain of narrators. This version adds: He was told: Apostle of Allah, in that case he will die of starvation. So he allowed him to visit (the city) twice a week so that he might ask for food and go back.