Musnad Ahmad 33:629

Musa narrated to us, Ibn Lahi'ah narrated to us, from Abu al-Zubayr, from Jabir, that he said: The Messenger of Allah, peace and blessings of Allah be upon him, said: "Indeed, there is an hour of the night that no Muslim servant encounters, asking Allah for good, except that He gives it to him, and it is every night."