187. At the beginning of the prayer #3
اَللَّهُمَّ بَاعِدْ بَيْنِيْ وَبَيْنَ خَطَايَايَ كَمَا بَاعَدْتَ بَيْنَ الْمَشْرِقِ وَالْمَغْرِبِ، اَللَّهُمَّ نَقِّنِيْ مِنَ الْخَطَايَا كَمَا يُنَقَّى الثَّوْبُ الْأَبْيَضُ مِنَ الدَّنَسِ، اَللَّهُمَّ اغْسِلْ خَطَايَايَ بِالْمَاءِ وَالثَّلْجِ وَالْبَرَدِ
Allaahumma baa'id baynee wa bayna khataayaaya kamaa baa'adta baynal-mashriqi walmaghrib, Allaahumma naqqinee minal khataayaa kamaa yunaqqath-thawbul-'abyadhu minad-danas, Allaahummaghsil khataayaaya, bil maa'i wath-thalji wal-barad
O Allah! separate me from my sins as You have separated the East from the West. O Allah, cleanse me of my transgressions as the white garment is cleansed of stains. O Allah! wash away my sins with ice and water and frost.
Narrated by Abu Huraira (RA): Allah's Messenger (ﷺ) used to keep silent between the Takbir and the recitation of Qur'an and that interval of silence used to be a short one. I said to the Prophet (ﷺ) "May my parents be sacrificed for you! What do you say in the pause between Takbir and recitation?" The Prophet (ﷺ) said, "I say, (The dua is Mentioned above)
Related Duas:
Dua to be recited after salaam #4
Dua Mathurah #11
The importance of slowly prostrating
Dua while prostrating [sujood] #6
Dua in rukoo #10
Dua after salat #5
Dua after reciting the verses of Prostration #2
Sins forgiven even if like the foam of the sea
To do Dua more and more in the state of sijdaah
Dua in rukoo #6
At the beginning of the prayer #5
Tashahhud (At-Tahiyyat)