When entering the mosque
أَعُوذُ بِاللَّهِ الْعَظِيمِ، وَبِوَجْهِهِ الْكَرِيمِ، وَسُلْطَانِهِ الْقَدِيمِ، مِنَ الشَّيْطَانِ الرَّجِيمِ
A'udhu billahil-'Adhim, wa bi-Wajhihil-Karim, wa sultanihil-qadim, minash-Shaytanir-rajim.
I seek refuge with Allah the Magnificent, by His Noble Face and His Eternal Authority, from Satan the accursed.
Virtue
Whoever says this upon entering the mosque, Satan says: 'He is protected from me for the rest of the day.'
بِسْمِ اللَّهِ، وَالصَّلَاةُ وَالسَّلَامُ عَلَى رَسُولِ اللَّهِ، اللَّهُمَّ افْتَحْ لِي أَبْوَابَ رَحْمَتِكَ
Bismillah, was-salatu was-salamu 'ala Rasulillah. Allahummaf-tah li abwaba rahmatik.
In the name of Allah, and prayers and peace be upon the Messenger of Allah. O Allah, open for me the doors of Your mercy.
Virtue
The Prophet ﷺ taught to say this supplication when entering the mosque, stepping in with the right foot.
Azkars
بِسْمِ اللَّهِ الرَّحْمَٰنِ الرَّحِيمِ