The Islamic prophet's foreknowledge of the Terfeziaceae's health benefits

[R00tKiT]

Sure, it's easy.
Someone pours truffle juice in their eye, either intentionally or by accident, and finds their eye infection clears up. No need for knowledge about microorganisms.

As far as I know, there is no mention of this practice before Muhammad's time. Also, it's hard to imagine someone specifically choosing truffles, then squeezing water out of them to treat their eye just by accident.

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If people were putting truffle water in their eyes 1400 years ago, it wasn’t risky at all for a prophet to say it.

Well, people weren't doing this before the prophet mentioned it, there is no report of that. I am of course open to rectify that if someone thinks they found something.