Narrated Sa`id bin Zaid:
I heard the Prophet (ﷺ) saying, "Truffles are like Manna (i.e. they grow naturally without man's care) and their water heals eye diseases."
[Sahih al-Bukhari 5708]
Modern scientific studies have investigated the properties of desert truffles, confirming many of the health benefits mentioned in traditional medicine.
Under Construction
...and sent down unto you manna and quails...
[Quran 2 : 57]