It is related by Muslim that the Prophet—may Allah bless him and grant him peace—said to Ubayy ibn Kaʿb:

“O Abū al-Mundhir, do you know which verse in the Book of Allah that you possess is the greatest?”

Ubayy replied:

“Allah—there is no deity but Him, the Ever-Living, the Sustainer of all.”

(Sūrat al-Baqarah 2:255)

The Prophet then placed his hand upon my chest and said, “May this knowledge delight you, Abū al-Mundhir!”

It is also authentically established through several chains that Sūrat al-Ikhlāṣ—“Say: He is Allah, One”—is equivalent to one-third of the Qur’an.

For the Qur’an is speech, and speech is either informative (khabar) or directive (inshāʾ). Directive speech comprises commands, prohibitions, and permissions, while informative speech pertains either to created beings—the narratives—or to the Creator. “Say: He is Allah, One” embodies this latter third, for it conveys information about the Creator.

Tenth Point:

Since pleasure resides in perceiving what is congenial, and the object perceived must be suited to the perceiver so that pleasure is attained through its apprehension, the claim they advance concerning