Chapter on the Manner of Prayer, Its Description and What is Obligatory and Recommended

Al-Husayn ibn Muhammad from Abdullah ibn Aamir from Ali ibn Mahziyar from Fadalah ibn Ayyub from Al-Husayn ibn Uthman from Amr ibn Abi Nasr who said: I said to Abu Abdillah عليه السلام, peace be upon him: “A man stands in prayer and wants to recite a Surah, but he recites ‘Surah Al-Ikhlas’ and ‘Surah Al-Kafirun’. Imam عليه السلام said: "He may turn back from any Surah except from ‘Surah Al-Ikhlas’ and ‘Surah Al-Kafirun’."