On the authority of Abu Hurayrah (may Allah be pleased with him), who said that the Messenger of Allah (peace be upon him) said: Our Lord (glorified and exalted be He) descends each night to the earth's sky when there remains the final third of the night, and He says: Who is saying a prayer to Me that I may answer it? Who is asking something of Me that I may give it him? Who is asking forgiveness of Me that I may forgive him?

[al-Bukhari]