Musnad Ahmad 30:674

'Abd al-Razzaq narrated to us, Ma'mar narrated to us, from Suhayl ibn Abi Salih, from his father, from Abu Hurayrah, from the Prophet, peace and blessings of Allah be upon him, who said: "Our Lord, the Mighty and Majestic, descends every night when the first third of the night has passed, and He says: 'I am the King. Who is it that asks of Me, so that I may give to him? Who is it that calls upon Me, so that I may answer him? Who is it that seeks My forgiveness, so that I may forgive him?' He continues like that until the dawn."