ﺍﻟﻠَّﻬُﻢَّ ﺍﻏْﺴِﻞْ ﺧَﻂَﺎﻳَﺎﻱَ ﺑِﻤَﺎءِ ﺍﻟﺜَّﻠْﺞِ ﻭَﺍﻟْﺒَﺮَﺩِ ﻭَﻧَﻖِّ ﻗَﻠْﺒِﻲ ﻣِﻦْ ﺍﻟْﺨَﻂَﺎﻳَﺎ ﻛَﻤَﺎ ﻳُﻨَﻘَّﻰ ﺍﻟﺜَّﻮْﺏُ ﺍﻷَْﺑْﻴَﺾُ ﻣِﻦْ ﺍﻟﺪَّﻧَﺲِ ﻭَﺑَﺎﻋِﺪْ ﺑَﻴْﻨِﻲ ﻭَﺑَﻴْﻦَ ﺧَﻂَﺎﻳَﺎﻱَ ﻛَﻤَﺎ ﺑَﺎﻋَﺪْﺕَ ﺑَﻴْﻦَ ﺍﻟْﻤَﺸْﺮِﻕِ ﻭَﺍﻟْﻤَﻐْﺮِﺏِ
Allahummagh-sil khataayaaya bimaa’ith-thalji wal-barad(i), wa naqqi qalbii minal-khataayaa kamaa yunaqqath-thawbul-‘abyadu minad-danas(i), wa baa’id baynii wa bayna khataayaaya kamaa baa’adtta baynal-mashriqi wal-maghrib. (‘A’ishah (RA). Sahih al-Bukhari #5898)
O Allah, wash away my sins with snow and hail water and purify my heart of sins as a white garment is cleansed of soil. And distance my sins as far away from me as You have distanced the east from the west.
The cold snow and hail water are needed to extinguish the heat and fire inherent in sins. The desired result is that one’s heart will be as completely cleansed of sins as a freshly laundered white garment.
It goes without saying that a person making this du’aa with sincerity and full understanding can never take pleasure from sins. Thus this powerful du’aa is an antidote against the sin-is-fun pop culture. The person making this du’aa sees his sins and mistakes as dark spots on a white cloth and the Shari’ah’s injunctions against sins as a blessing not a burden.
(Source: Khalid Baig’s commentary to du’aa #41 in the Accepted Whispers: Munajat-e-Maqbul)