I seek refuge with Allah the Almighty, with His Noble Face and eternal authority — Mosque Adhkar
أَعُوذُ بِاللَّهِ الْعَظِيمِ وَبِوَجْهِهِ الْكَرِيمِ وَسُلْطَانِهِ الْقَدِيمِ مِنَ الشَّيْطَانِ الرَّجِيمِ بِسْمِ اللَّهِ وَالصَّلَاةُ وَالسَّلَامُ عَلَى رَسُولِ اللَّهِ اللَّهُمَّ افْتَحْ لِي أَبْوَابَ رَحْمَتِكَ
Transliteration: A'oodhu billaahil-'adheemi wa biwajhihil-kareemi wa sultaanihil-qadeemi minash-shaytaanir-rajeem. Bismillaah was-salaatu was-salaamu 'alaa rasoolillaah. Allaahumma-ftah lee abwaaba rahmatik
Translation: I seek refuge with Allah the Almighty, with His Noble Face and eternal authority, from the accursed Satan. In the name of Allah, peace and blessings be upon the Messenger of Allah. O Allah, open for me the gates of Your mercy. (Full entering mosque du'a)
Reference: Abu Dawud 1:131, Muslim 1:494