Remembrance 1 from Chapter 20
What to say when entering and leaving the mosque

A‘ūdhu bi-llāhi-l-‘Aẓīm, wa bi-wajhihi-l-karīm, wa sulṭānihi-l-qadīm, mina-sh-Shayṭāni-r-rajīm. Al-ḥamdu li-llāh. Allāhumma ṣalli wa sallim ‘alā Muḥammadin wa ‘alā āli Muḥammad. Allāhumma-ghfir lī dhunūbī wa-ftaḥ lī abwāba raḥmatik. Bismi-llāh.
IT IS MUSTAḤABB to say: I seek protection with Allah the Tremendous and with His Noble Countenance and His Pre-eternal Sovereign Might from Shayṭān the rejected. Praise be to Allah. O Allah, send blessings and salutations upon Muḥammad and upon the family of Muḥammad. O Allah, forgive me my sins and open for me the doors of Your Mercy. Then one should say In the name of Allah. He should enter with his right foot first. He should leave with his left foot first and say all that we mentioned above, except that he should say the doors of Your Favour instead of Your Mercy.