Shaytan would move aside from him..
Reference: Have Tawakkul on Allah when leaving Home
Reported by Abu dawood, An-Nisã’ee , and At-Tirmithi and he said it was comely-sound. Al-Albãni said it is as At-Tirmithi said; rather, he said, it is sound, and he said that Ibn Hibbãn also reported it in his Saheeh. Al-Albãni included this hadeeth in The Authentic of Good Sayings as #44.