"And if you ask them, 'Who sends down rain from the sky, giving life thereby to the earth after its death?' they will surely say, 'Allah.'"
They confess that He—Mighty and Majestic is He—is the Originator of all possible existents, both their roots and their branches. Yet, they associate with Him, Glory be to Him, some of His creations from whom one could hardly even imagine the capacity for anything at all.
"Say: 'Praise belongs to Allah'"—for manifesting the proof and for their confession of what is binding upon them. It is also said: It is a command for His praise, peace and blessings be upon him, for his immunity from the error they are upon, given that they associate others with Him despite their acknowledgment that the roots and branches of blessings are from Him, Majestic is His Majesty. Thus, it is like the praise offered upon seeing the afflicted. It is also said: It is permissible that it be praise for both this and that.
"But most of them do not use their reason"—regarding what they say and what it contains of evidence for the invalidity of polytheism and the truth of monotheism; or they do not use their reason for anything at all, and therefore they do not act in accordance with this statement of theirs, so they associate with Him, Glory be to Him, the most base of His creations. It is said: It is a turning away from their specific ignorance in presenting that which is a proof against them, to the fact that this is because they are devoid of reason, so such behavior is not far-fetched from them.
His saying, the Exalted, "Say: 'Praise belongs to Allah'" is a parenthetical statement. Al-Zamakhshari, in Surah Luqman, considered it a compulsion and an affirmation of His, the Exalted's, right to be praised. It is also said: They "do not use their reason" regarding what you intend by your praise upon their statement. Some scholars of verification have not accepted this due to its obscurity, its lack of utility, and the forced nature of the justification for the turning away within it.