Musnad Ahmad 32:1176

Yazid and ‘Affan narrated to us, they said: Hammam ibn Yahya informed us, from Ishaq ibn ‘Abdullah ibn Abi Talha—‘Affan said from Hammam: Ishaq, the nephew of Anas ibn Malik, informed us—from Anas ibn Malik, who said: "The Messenger of Allah (may Allah bless him and grant him peace) would not come to his family by night. He would arrive in the morning or in the evening."