‏الأشربة : Hadeeth No:5089 Sa'id b. Zaid reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: Truffles are 'Manna' and its juice is the medicine for the eyes....

‏الآداب : Hadeeth No:5355 This hadith has been narrated on the authority of Yazid b. Khusaifa with the same chain of transmitters but with this addition: Abu Sa'id said: So I stood up, and went to 'Umar and gave witness (to what Abu Musa had said)....