Abu Hurairah narrated that:
Allah's Messenger (S) said: "Allah, Blessed and Exalted is He, descends to the earth's heaven every night when the first third of the night has passed. He says: "I am the Sovereign. Is there any who calls upon Me so that I may respond to him? Is there any who asks of Me that I may give him? Is there any who seeks forgiveness from Me so that I may forgive him?' He continues in that until the illumination of Al-Fajr."