‏فضائل الصحابة‏ : Hadeeth No:6058 Ibn Umar reported: I used to spend nights in the mosque and by that time I had no wife and children. I saw in a dream as if I am being taken to a well. I made a mention of it to Allaah's Messenger (may peacebe upon him). The rest of the hadith is the same....

‏الأشربة : Hadeeth No:5086 Sa'id b. Zaid b. 'Amr b. Nufail reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: Truffles are a kind of 'Manna' which Allaah the Glorious and Exalted, sent down upon the people of Israil, and its juice is a medicine for the eyes....