Maybe the clear proof used to be a clear proof when Muhammad was alive. That's why so many people converted to Islam. But the "clear" proof doesn't exist anymore, I suppose. (?)
I said this earlier, which is that all these "proofs" for Islam are basically a matter of degrees because our perception of them differ from one another in the same way as teleological arguments, fine tuning arguments, and all the other arguments for the existence of God. The air, water, earth, clouds, food, light, butterflies, flying squirrels, etc. are all proof to me for the existence of God, but they are only natural elements for an atheist. Similarly, even humans are a proof to me, while for you, they are nothing but biological entities originating from a sperm and an egg cell.
I said this earlier, which is that all these "proofs" for Islam are basically a matter of degrees because our perception of them differ from one another in the same way as teleological arguments, fine tuning arguments, and all the other arguments for the existence of God. The air, water, earth, clouds, food, light, butterflies, flying squirrels, etc. are all proof to me for the existence of God, but they are only natural elements for an atheist. Similarly, even humans are a proof to me, while for you, they are nothing but biological entities originating from a sperm and an egg cell.