Musnad Abu Ya'la al-Mawsili 108:4

Ibrahim ibn al-Hajjaj narrated to us, Hammad narrated to us, from Habib al-Mu'allim, from 'Ata' ibn Abi Rabah, from Jabir ibn 'Abdullah, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Restrain your livestock until the darkness of the night passes, for it is an hour in which the devils spread out."