Nasai

1337. Commentary: In some narrations, there is mention of the "Mu'awwidhatayn," that is, the last two chapters of the Noble Qur'an, «قُلْ أعُوذُ بِرَبِّ الْفَلَقِ» and «قُلْ أعُوذُ بِرَبِّ النّاسِ». The meaning of Mu'awwidhat is that these words protect their reciter from every evil, or that through them, Allah's protection is sought. These chapters were also revealed for this very reason: that through them, one may seek protection from the envy, sorcery, evil of people, and from devils.

1523. Commentary: In Jami' al-Tirmidhi, this narration mentions "al-Mu'awwidhatayn" in the dual form instead of "al-Mu'awwidhat" in the plural. By these, what is meant is [قُلْ أَعُوذُ بِرَبِّ الْفَلَقِ] and [قُلْ أَعُوذُ بِرَبِّ النَّاسِ]. And in this narration, they have been mentioned with the plural form, and it is possible that along with them, [قُلْ يَا أَيُّهَا الْكَافِرُونَ) اور [قُلْ هُوَ اللَّـهُ أَحَدٌ] is also intended. Because all these surahs are comprehensive of all forms of seeking refuge (ta'awwudh). In Surah al-Kafirun, there is a declaration of disavowal from shirk (polytheism), in Surah al-Ikhlas, there is an expression and affirmation of tawhid (the oneness of Allah), and in the Mu'awwidhatayn, there is mention of seeking Allah's protection from every evil.