It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: The example of the five prayers is like that of a stream flowing at the door of one of you, in which he bathes five times a day. What do you think—will any dirt remain on his body?
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 9692