`Uthman ibn `Affan (Allah be well-pleased with him) reported that the Messenger of Allah (Allah bless him and give him peace) said, “No slave of Allah says in the morning every day and the evening every night, ‘In the name of Allah by whose name nothing in the earth or the heaven can be harmed. He is the Hearing, the Knowing,’ three times without that ensuring that nothing will harm him.” [Abu Dawud; Tirmidhi]

بِسْمِ اللهِ الَّذِيْ لا يَضُرُّ مَعَ اسْمِهِ شَيْءٌ فِي الأَرْضِ وَلا فِي الْسَّمَاءِ وَهُوَ السَّمِيْعُ الْعَلِيْمُ

BismiLlahi’lladhi la yadurru ma’asmihi shay’un fi’l-ardi wa la fi’s-sama’i wa huwa’s-Sami’u’l-‘Alim