Narrator:Anas ibn Mālik
حَدَّثَنَا سَعِيدُ بْنُ يَحْيَى بْنِ سَعِيدٍ الأُمَوِيُّ، حَدَّثَنَا أَبِي، حَدَّثَنَا ابْنُ جُرَيْجٍ، عَنْ إِسْحَاقَ بْنِ عَبْدِ اللَّهِ بْنِ أَبِي طَلْحَةَ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم
" مَنْ قَالَ - يَعْنِي إِذَا خَرَجَ مِنْ بَيْتِهِ - بِسْمِ اللَّهِ تَوَكَّلْتُ عَلَى اللَّهِ لاَ حَوْلَ وَلاَ قُوَّةَ إِلاَّ بِاللَّهِ . يُقَالُ لَهُ كُفِيتَ وَوُقِيتَ . وَتَنَحَّى عَنْهُ الشَّيْطَانُ "
Anas ibn Mālik (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: "Whoever says (upon leaving his house) 'In the name of Allah; I rely on Allah; there is no might and no power save in Allah', it will be said to him: 'You are guided, sufficed, and protected', and the devil will go far away from him."
The narration by Abu Dawūd has the following addition: "So he (the devil) says to another devil: How can you approach a man who has been guided, granted relief, and protected?”
Reported by At-Tirmidhi (No. 3426) and Abu Dawud (No. 5095).