(58) باب الاِسْتِعَاذَةِ مِنْ شَرِّ مَا عُمِلَ وَذِكْرِ الاِخْتِلاَفِ عَلَى هِلاَلٍ
It was narrated from 'Abdah bin Abi Lubabah that Ibn Yasaf told him that he asked 'Aishah, the wife of the Prophet [SAW], :
What supplication did the Messenger of Allah [SAW] say the most before he died? 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.)'"
Reference: Sunan an-Nasa'i 5523
In-book reference: Book 50, Hadith 96
English translation: Vol. 6, Book 50, Hadith 5525