Yazid bin Harun يزيد بن هارون · The Book on Fasting

"I could not find the Messenger of Allah one night. So I left and found him at Al-Baqi. He said: 'Did you fear that you had been wronged by Allah and His Messenger?' I said: 'O Messenger of Allah! I thought that you had gone to one of your wives.' So he said: 'Indeed Allah, Mighty and Sublime is He, descends to the lowest Heavens during the night of the middle of Sha'ban, to grant forgiveness to more than the…