Musnad Abu Ya'la al-Mawsili 45:10

Abu Bahr narrated to us, Hammad narrated to us, from Hisham, from his father, from al-Zubayr, the like of it. And he recited: "Then after distress, He sent down security upon you, [as] drowsiness overcoming a faction [of you]" (Al-Imran: 154).