Sunan an-Nasa'i 1356

Qutaybah ibn Sa‘id informed us; he said: Bakr—namely, Ibn Mudar—narrated to us, from Ibn al-Had, from Muhammad ibn Ibrahim, from Abu Salamah ibn ‘Abd al-Rahman, from Abu Sa‘id al-Khudri, who said: The Messenger of Allah (peace and blessings be upon him) would observe seclusion in the ten days in the middle of the month. When twenty nights had passed and the twenty-first began, he would return to his dwelling, and those who had observed seclusion with him would return as well. Then, in a month when he had observed seclusion, he stayed on that night when he would normally return. He addressed the people and instructed them as Allah willed, then said: “I used to observe seclusion during these ten days, but then I decided to observe seclusion during these last ten. Whoever has been performing retreat with me, let him remain in his place of retreat. I was shown this night, then made to forget it, so seek it among the last ten nights, on every odd-numbered night. I saw myself prostrating in water and mud.” Abu Sa‘id said: Rain fell on the night of the twenty-first, and water leaked into the mosque at the place where the Messenger of Allah (peace and blessings be upon him) prayed. I saw him after he finished the dawn prayer, with his face wet with mud and water.