.....
Abū Hurairah رضي الله عنه reported: I
heard the Messenger of Allāh 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) Salāt (prayers). Allāh
obliterates all sins as a result of performing them.” [Al-Bukhārī and Muslim]
Commentary: This Hadīth tell us about the
merit and benefits of the performance of the prescribed five daily Salāt, performing them will wash off one’s sins, but
this is true of only such Salāt
which is performed in accordance with Sunnah, i.e., punctually in exactly the
manner showed by the Prophet ﷺ, and not of that which is offered at will in one’s own way.
Source: Riyād-us-Sāliheen, volume 2, page. 822 under Chapter 187 The Excellence of As-Salāt (The Prayer), Hadīth 1042, Compiled by Al-Imām Abu Zakariya Yahya bin Sharaf An-Nawawi Ad-Dimashqi, Darussalam.