Silsilat al-Ahadith al-Sahihah

It is narrated from Sayyiduna Abdullah bin Unais (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Laylat al-Qadr was shown to me, but then I was made to forget it. I think that on the morning of that night I will be prostrating in water and mud." He said: On the twenty-third (night) of (Ramadan), it rained, and the Messenger of Allah (peace and blessings be upon him) led the prayer. When he finished, it was seen that there were traces of water and mud on his face and nose.