And our Master Abu Sa'id said in Book of the Proofs: "For if He, the Exalted, appeared in other than their languages and descriptions, they would not have understood from Him, nor would they have found intimacy with Him; and if that were contrary to what appeared to His creation, they would not have understood His speech from Him, and that would not be permissible in His justice."

And it came in The Gnostic’s Proof: "If you say: 'Why then did He not speak to creation in the Lordship that has no modality nor form?'"

So the answer: "We see many forms that do not understand one another, while they are of one genus, so how could His command and His prohibition be understood from the Creator? If you say: 'By His capability.'

The answer: Capability is ancient, so how can the originated understand from it? While the case is that the Arab does not understand from the non-Arab, and the Zanj does not understand from the Khazar due to the variation of countries and lineages, yet they are of one genus; therefore, it is necessary that He appear in a modality from the genus of His creation,