Musannaf Ibn Abi Shayba 28:1118

Ghundar narrated to us, from Shu'bah, from al-Aswad ibn Qays, that he heard Nabih al-'Anazi from Jabir ibn 'Abdullah, who said: The Messenger of Allah (peace be upon him) said: "If you enter at night, let no one come to his family unexpectedly (at night)." Jabir said: By Allah, we did come to them unexpectedly after that.