The Signs in Sajda (Session 4)

10:100 "And it is not for a soul to believe except by permission of Allah, and He will place defilement upon those who will not use reason.

Abu Huraira reported: The Messenger of Allah, peace and blessings be upon him, said, “If there was a river at your door and he took a bath in it five times a day, would you notice any dirt on him?” They said, “Not a trace of dirt would be left.” The Prophet said, Fa dhzalika mithlu Salawaatil Khamsi - Yamhu llahu bihaal KhaTawya “That is the parable of the five prayers by which Allah removes sins.” (mistakes)

Source: ?a?i? al-Bukhari 505, ?a?i? Muslim 667