The Masjid
1
Before entering the masjid
أَعُوذُ بِاللَّهِ الْعَظِيمِ وَبِوَجْهِهِ الْكَرِيمِ وَسُلْطَانِهِ الْقَدِيمِ مِنَ الشَّيْطَانِ الرَّجِيمِ
A'oodhu billaahil-'adheem, wa biwajhihil-kareem, wa sultaanihil-qadeem, minash-shaytaanir-rajeem
I seek refuge in Allah the Almighty, in His noble Face and His eternal authority, from the accursed Shaytan.
— Abu Dawud 466
2
On entering the masjid (right foot first)
اللَّهُمَّ افْتَحْ لِي أَبْوَابَ رَحْمَتِكَ
Allaahum-maf-tah lee abwaaba rahmatik
O Allah, open for me the gates of Your mercy.
— Sahih Muslim 713
3
On leaving the masjid (left foot first)
اللَّهُمَّ إِنِّي أَسْأَلُكَ مِنْ فَضْلِكَ
Allahumma innee as-aluka min fadlik
O Allah, I ask You from Your bounty.
— Sahih Muslim 713