When entering the mosque, say -
أَعُوْذُ بِاللَّهِ الْعَظِيمِ وَبِوَجْهِهِ الْكَرِيمِ وَسُلْطَانِهِ الْقَدِيمِ مِنَ الشَّيْطَانِ الرَّجِيمِ
Pronunciation
A‛oodhu Billaahil ‘Azeem, Wabi Wazhihil Kareem, Wa Sultaanihil Qadeem Minash Shaytaanir rajeem
Meaning
I seek refuge in Allah, the Magnificent, and in His noble face, and in his eternal domain, from the accursed Devil. Uqbah (RA) said, ‘When someone recites this du’a, the devil says, ‘This man escaped from me (evil and intrigue) for the whole day.
Source: Sahih. Abu Dawud: 466
Read the hadith
حَدَّثَنَا إِسْمَاعِيلُ بْنُ بِشْرِ بْنِ مَنْصُورٍ، حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ مَهْدِيٍّ، عَنْ عَبْدِ اللَّهِ بْنِ الْمُبَارَكِ، عَنْ حَيْوَةَ بْنِ شُرَيْحٍ، قَالَ لَقِيتُ عُقْبَةَ بْنَ مُسْلِمٍ فَقُلْتُ لَهُ بَلَغَنِي أَنَّكَ حَدَّثْتَ عَنْ عَبْدِ اللَّهِ بْنِ عَمْرِو بْنِ الْعَاصِ، عَنِ النَّبِيِّ صلى الله عليه وسلم أَنَّهُ كَانَ إِذَا دَخَلَ الْمَسْجِدَ قَالَ " أَعُوذُ بِاللَّهِ الْعَظِيمِ وَبِوَجْهِهِ الْكَرِيمِ وَسُلْطَانِهِ الْقَدِيمِ مِنَ الشَّيْطَانِ الرَّجِيمِ " . قَالَ أَقَطُّ قُلْتُ نَعَمْ . قَالَ فَإِذَا قَالَ ذَلِكَ قَالَ الشَّيْطَانُ حُفِظَ مِنِّي سَائِرَ الْيَوْمِ .
Haiwah b. Shuraih reported : I met ‘Uqbah b. Muslim and said to him: it has been reported to me that someone has narrated to you from the prophet (ﷺ) that when he entered the mosque, he would say: I seek refuge in Allah, the Magnificent, and in His noble face, and in his eternal domain, from the accursed Devil. He asked : is it so much only? I said: Yes. He said: when anyone says so. The devil says: he is protected from me all the day long. [Sahih (Albani). Abu Dawud: 466]
Duas from IslamicAPI's Masnun Dua dataset (based on the Quran, hadith, Hisnul Muslim and Rahe Belayat). See the dataset