The Quran has clearly explained these two matters—tawḥīd and shirk—to the utmost clarity. Therefore, it is said: [and most of the Quran is in the explanation of this principle]. There is no doubt that most of the Quran is in affirming this principle, which is the obligation of dedicating worship solely to Allāh and the prohibition of shirk in all its forms. The entire Quran is tawḥīd, as it calls on the side of the call to tawḥīd to sincerity in deeds for Allāh, and it explains the virtues and benefits of tawḥīd, and it clarifies the fate of the people of tawḥīd. As for the side of the prohibition of shirk, Allāh has forbidden it and warned against it, explaining that it is a great injustice. Allāh, the Glorious and Exalted, has shown the evil consequences of shirk for its people in this world before the Hereafter. He has clarified the fate of the polytheists, that they are in a blazing fire, due to the enormity of what they have committed, as He, the Exalted, said: "Indeed, Allāh does not forgive association with Him, but He forgives what is less than that for whom He wills" (Sūrah al-Nisāʾ, 4:48). Allāh does not forgive shirk at all, but forgives what is less than that for whom He wills. This withholding from the Most Merciful, the Most Compassionate, the Beneficent, the Kind, is only due to the enormity of the crime, for shirk is a great injustice as described by the Lord of the worlds. The entire Quran is a clarification of tawḥīd, its virtue, and the virtue of its outcome and the outcome of its people, and a clarification of shirk, its evil outcome, and the evil state of its people in this world before the Hereafter. Therefore, the explanation of tawḥīd in the Quran is clear to everyone. Therefore, it was said, may Allāh have mercy on him: [and most of the Quran is in the explanation of this principle from various aspects], meaning: not from one aspect alone, not only by commanding tawḥīd or prohibiting shirk, but it is explained from all aspects, whether it is a command for tawḥīd, a prohibition of shirk, an explanation of the merits of tawḥīd, an explanation of the evils of shirk, an explanation of the fate of the people of tawḥīd, or an explanation of the fate of the people of shirk. He said: [with words understood by even the dullest of the common people], meaning: it does not require understanding, nor great eloquence, nor profound comprehension to grasp these meanings, but they are apparent to everyone. For example, His saying, the Exalted: "Say, He is Allāh, [who is] One" (Sūrah al-Ikhlāṣ, 1), this verse is understood by everyone, that He, the Exalted, is One in what is due to Him of lordship, divinity, names, and attributes.