Abu Hurairahu (May Allah be pleased with him) reported:
I heard the Messenger of Allah (ﷺ) saying, "Say, if there were a river at the door of one of you in which he takes a bath five times a day, would any soiling remain on him?" They replied, "No soiling would left on him." He (ﷺ) said, " That is the five (obligatory) Salat (prayers). Allah obliterates all sins as a result of performing them."[Al-Bukhari and Muslim].
App reference: Book 9, Hadith 52
Arabic/English book reference: Book 9, Hadith 1042