And the Prophet Muhammad (peace and blessings be upon him) said: Every night, when one third of the night remains, Allah Almighty descends to the lowest heaven and announces: I am the True King (twice). Who is there who supplicates to Me so that I may accept his supplication? Who is there who seeks forgiveness from Me so that I may forgive him? Who is there who asks from Me so that I may grant him? This announcement continues until the break of dawn.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 9436