Musnad Abu Ya'la al-Mawsili 109:282

Ibn Numayr narrated to us, Ibn Idris narrated to us, from al-A‘mash, from Abu Sufyan, from Jabir, who said: The Messenger of Allah (may Allah bless him and grant him peace) said: "Indeed, there is an hour in the night; no Muslim coincides with it, asking Allah for good, but He gives it to him. And that is in every night."