Shaykh Ḥammād bin Muḥammad al-Anṣārī said:

And this sūrah (al-Fātiḥah) is from the collection of sūrahs which have been singled out for (the explanation of) Tawḥīd. And the sūrahs which have been singled out for Tawḥīd are four in the Noble Qurʾān:

a) Sūrah al-Fātiḥah
b) Sūrah al-Kāfirūn
c) Sūrah “Qul Huwallāhu Aḥad”
d) Sūrah al-Falaq

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