The Book of Drinks
36/28. Chapter:
The virtue of truffles, and treating the eyes with them
Sahih Muslim
وَحَدَّثَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، أَخْبَرَنَا جَرِيرٌ، عَنْ مُطَرِّفٍ، عَنِ الْحَكَمِ بْنِ عُتَيْبَةَ، عَنِ الْحَسَنِ الْعُرَنِيِّ، عَنْ عَمْرِو بْنِ حُرَيْثٍ، عَنْ سَعِيدِ بْنِ زَيْدٍ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " الْكَمْأَةُ مِنَ الْمَنِّ الَّذِي أَنْزَلَ اللَّهُ عَلَى مُوسَى وَمَاؤُهَا شِفَاءٌ لِلْعَيْنِ " .
Sa'id b. Zaid reported Allal a Messenger (ﷺ) as saying: Truffles are a kind of 'Manna' which Allah sent down upon Moses and their juice is a medicine for the eyes.
Reference : Sahih Muslim 2049eIn-book reference : Book 36, Hadith 220USC-MSA web (English) reference : Book 23, Hadith 5087