Invocation
For one afflicted with doubt in his faith
يقرأ قوله تعالى ((هُوَ الأوَّلُ، وَالآخِـرُ، وَالظّـاهِـرُ، وَالْبـاطِـنُ، وَهُوَ بِكُلِّ شَيءٍ عَلـيم))
(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).
Al-Hadid 57:3, Abu Dawud 4/329. Al-Albani graded it good in SahihAbu Dawud,
3/962.