7-21 (The compiler of the book narrated) that his father - may God be pleased with him - narrated that Sa’ed ibn Abdullah quoted Ayoob ibn Nooh, on the authority of Abdullah ibn al-Muqayrih, on the authority of Mu’az ibn Muslim, on the authority of Aba Abdullah as-Sadiq (MGB), “Never abandon reading the Al-Ikhlas and the Kafirun Quranic Chapters in the following seven instances: in the two units of recommendable (Nafila) prayers before dawn prayers; in the two units of recommendable (Nafila) prayers at sunset; in the two units of recommendable (Nafila) prayers after the evening prayer; in the first two units of the night prayer; in the two units of Ihram prayer; in the two units of the morning prayer; and in the two units of the Ka’ba circumambulation prayer.”The compiler of the book - may God be pleased with him - said, “The instruction above for reciting the above-mentioned two Quranic Chapters in these seven instances is a recommendation. It is not an obligation.”