NASAI 5524: from Ibn Yisāf —
"I asked 'Aishah, what was the supplication that the Prophet [SAW] said the most? She said: 'The supplication that he said the most was: Allahumma, inni a'udhu bika min sharri ma 'amiltu wa min sharri ma lam a'mal ba'd (O Allah, I seek refuge with You from the evil of what I have done, and from the evil of what I have not done yet.)'"

النسائي ٥٥٢٤: عن ابن يساف —
سُئِلَتْ عَائِشَةُ مَا كَانَ أَكْثَرَ مَا كَانَ يَدْعُو بِهِ النَّبِيُّ ﷺ قَالَتْ كَانَ أَكْثَرَ دُعَائِهِ أَنْ يَقُولَ اللَّهُمَّ إِنِّي أَعُوذُ بِكَ مِنْ شَرِّ مَا عَمِلْتُ وَمِنْ شَرِّ مَا لَمْ أَعْمَلْ بَعْدُ


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Nasāʾī > Seeking Refuge with Allah > § Seeking Refuge from the Evil of One's Actions, and...
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