Nuaim bin Abdullah once climbed onto the roof of the mosque and reached Hazrat Abu Hurairah (may Allah be pleased with him). He was wearing trousers under his shirt. He took off the trousers and began to perform ablution, washing his face, his hands up to the elbows, and his feet up to the shins. He then said that he heard the Noble Prophet (peace and blessings be upon him) say: On the Day of Resurrection, the people of my Ummah will have radiant and shining foreheads from the marks of ablution. (Therefore, whoever among you can increase his brightness should do so.)