The revelation of the Book is from Allah The Exalted in Power, full of Wisdom. Verily in the heavens and the earth, are signs for those who believe. And in the creation of yourselves and the fact that animals are scattered(through the earth), are Signs for those with assured faith.[Qur'an 45:2-4]

Narrated Abu Huraira(RA):I heard Allah's Apostle(PBUH) saying, "If there was a river at the door of anyone of you 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 added, "That is the example of the five prayers with which Allah blots out (annuls) evil deeds."