Riyad as-Salihin, Book 9, Hadith 1042 (In-Book) ⓘ

Abu Hurairahu (May Allah be pleased with him) reported: I heard the Messenger of Allah 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 said, " That is the five (obligatory) Salat (prayers). Allah obliterates all sins as a result of performing them."[Al-Bukhari and Muslim].

وعن أبي هريرة رضي الله عنه قال‏:‏ سمعت رسول الله صلى الله عليه وسلم يقول‏:‏ ‏"‏أرأيتم لو أن نهرًا بباب أحدكم يغتسل منه كل يوم خمس مرات، هل يبقى من درنه شيء‏؟‏‏"‏ قالوا‏:‏ لا يبقى من درنه شيء، قال‏:‏ ‏"‏فذلك مثل الصلوات الخمس، يمحو الله بهن الخطايا‏"‏‏.‏‏(‏‏(‏متفق عليه‏)‏‏)‏‏.‏