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

[LostLocke]

Microorganisms were discovered for the first time in the 17th century, almost one thousand years after Muhammad's death, and almost 800 years after Al-Bukhari compiled his famous hadith collection. There is no way anyone back then could have investigated some antimicrobial effect of truffles.

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.

People have chewed cocoa and coffee beans for centuries because it gave them energy, without having the foggiest concept of caffeine.