Sunan Ibn Majah 3454
سنن ابن ماجه#3454Sahih‘Amr bin Huraith said:“I heard Sa’eed bin Zaid bin ‘Amr bin Nufail narrating from the Prophet (ﷺ) that: ‘Truffles are a type of manna that Allah sent down to the Children of Israel, and their water is a healing for eye (diseases).’”
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 31:19