Parsing the fā' in the saying of Allah the Exalted: "There is nothing like Him"

Question:
He says: Honorable Shaykh, may Allah grant you success. Regarding the saying of the Exalted, , who says that the position of the letter "fa" in the phrase "kama thillahu" (like Him) in terms of its grammatical status is that it is superfluous, is this statement correct?

Answer:
No, it is not correct. There is nothing superfluous in the Qur'an, so this statement should not be made. However, regarding "There is nothing like Him," it has been said that its meaning is for emphasis, like with the bā' of "Kāfi" (sufficient). The original form is "Is not Allah sufficient for His servant?" So the bā' was brought in for emphasis. Similarly, in "There is nothing like Him," the kāf was brought in for the sake of emphasis, emphasizing the negation. It has also been said that "like Him" (mithlihi) means "attribute," i.e., there is nothing like His attribute.