Invocations for if you are stricken by in your faith

 133. (Say:) I seek refuge in Allah. (Then you should desist from doing what you are in doubt about.)

Reference: Al-Bukhari, cf. Al-Asqalani, Fathul-Bari 6/336, Muslim 1/120.

134. 'Aamantu billaahi wa Rusulihi.

(Say:) I believe in Allah and His Messenger.

Reference: Muslim, 1/119-20.

135. Huwal-'Awwalu wal-'Aakhiru wadh-Dhaahiru wal-Baatinu, wa Huwa bikulli shay'in 'Aleem.

(Recite the Ayat) He is the First and the Last, the Most High and the Most Near. And He is the Knower of all things (in Arabic).

Reference: Al-Hadid 57:3, Abu Dawud 4/329. Al-Albani graded it good in SahihAbu Dawud, 3/962