بِسْمِ اللهِ ، تَوَكَّلْـتُ عَلى اللهِ وَلا حَوْلَ وَلا قُـوَّةَ إِلاّ بِالله

In the Name of Allah, I have placed my trust in Allah, there is no might and no power except by Allah.

Reference: Abu Dawud 4/325, At-Tirmidhi 5/490. See also Al-Albani, Sahih At-Tirmidhi 3/151

اللّهُـمَّ إِنِّـي أَعـوذُ بِكَ أَنْ أَضِـلَّ أَوْ أُضَـل ، أَوْ أَزِلَّ أَوْ أُزَل ، أَوْ أَظْلِـمَ أَوْ أَُظْلَـم ، أَوْ أَجْهَلَ أَوْ يُـجْهَلَ عَلَـيّ

O Allah, I seek refuge in You lest I misguide others , or I am misguided by others , lest I cause others to err or I am caused to err , lest I abuse others or be abused, and lest I behave foolishly or meet with the foolishness of others.

Reference: Abu Dawud, Ibn Majah, An-Nasa'i, At-Tirmidhi. See also Al-Albani, Sahih At-Tirmidhi 3/152 and Sahih Ibn Majah 2/336

بِسْـمِ اللهِ وَلَجْنـا، وَبِسْـمِ اللهِ خَـرَجْنـا، وَعَلـى رَبِّنـا تَوَكّلْـن (ثم ليسلم على أهله.)

In the Name of Allah we enter , in the Name of Allah we leave , and upon our Lord we depend [then say As-Salāmu `Alaykum to those present].

Reference: Abu Dawud 4/325. Muslim {Hadith no. 2018) says that one should mention the Name of Allah when entering the home and when beginning to eat; and that the devil, hearing this, says: "There is no shelter for us here tonight and no food."