Sunan an-Nasa'i 5486
It was narrated from Umm Salamah that :
When the Prophet [SAW] went out of his house, he said: "Bismillahi Rabbi! A'udhu bika min an azilla aw adilla aw azlima aw uzlama, aw ajhala aw yujhala 'alayya (In the name of Allah, my Lord, I seek refuge in You from falling into error or going astray, or wrongdoing (others) or being wronged, and from behaving or being treated in an ignorant manner.)"
أَخْبَرَنِي مُحَمَّدُ بْنُ قُدَامَةَ، قَالَ حَدَّثَنَا جَرِيرٌ، عَنْ مَنْصُورٍ، عَنِ الشَّعْبِيِّ، عَنْ أُمِّ سَلَمَةَ، أَنَّ النَّبِيَّ صلى الله عليه وسلم كَانَ إِذَا خَرَجَ مِنْ بَيْتِهِ قَالَ ‏
"‏ بِسْمِ اللَّهِ رَبِّ أَعُوذُ بِكَ مِنْ أَنْ أَزِلَّ أَوْ أَضِلَّ أَوْ أَظْلِمَ أَوْ أُظْلَمَ أَوْ أَجْهَلَ أَوْ يُجْهَلَ عَلَىَّ ‏"‏ ‏.‏