Hakeemul Ummah Hazrat Moulana Ashraf Ali Thaanwi Sahib رحمه الله has advised that if one slips into sin; (immediately) seek forgiveness from Allah Ta’ala جل جلاله and involve oneself in virtuous deeds. At times one gets depressed at the amount of sins and doubts forgiveness; understand that this is a Shaitāni deception. Turn to Allah Ta’ala جل جلاله with steadfastness.
Ārif Billāh Hazrat Dr Abdul Hayy Sahib جل جلاله has explained through an example that just as one massive wave will cleanse all the accumulated impurity of Karachi, so too will a moment of sincere repentance annihilate all sins. The need is to therefore remain focused on the qudrat of Allah Ta’ala جل جلاله and maintain good deeds.