Mishkat al-Masabih

‘Utba b. al-Mundhir said that once when they were with God’s Messenger he recited Ta’ Sin Mim (Al-Qur’an 28. The passage about Moses hiring himself is verses 26 to 28) till he came to the story of Moses and said, “Moses hired himself for eight or ten years in return for preserving his chastity and receiving his food." Ahmad and Ibn Majah transmitted it.