Narrated by Sayyiduna Abdullah bin Unais (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: I did see the Night of Qadr, but then it was made to be forgotten by me. Now I see myself prostrating in water and mud on the morning of that night. So, on the twenty-third night, it rained and the Messenger of Allah (peace and blessings be upon him) led us in the (morning) prayer. When he finished the prayer, there was a mark of mud on his forehead and nose.