What is the key difference between the two accounts of the verse?

Kināyah: Definition, Implication, Literal Meaning, and Its Difference from Majāz

• Additional emphatic kāf versus an original kāf with allusive inference
• Treating kāf as original and mithl as extra, or both as original
• Treating kāf as comparison and mithl as an adjective, or both as simile
• Ellipsis of a genitive head versus an implied adjective