It was narrated from Abu Hurairah that the Messenger of Allah (ﷺ) said:
Do you think that is there was a river by the door of any one of you, and he bathed in it five times each day, would there be any trace of dirt left on him? They said: No trace of dirt would be left on him. He said: That is the likeness of the five daily prayers. By means of them Allah erases sins.