Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
ibnmajah:3453Muḥammad b. ʿAbdullāh b. Numayr > Asbāṭ b. Muḥammad > al-Aʿmash > Jaʿfar b. Iyās > Shahr b. Ḥawshab > Abū Saʿīd And Jābir

“Truffles are a type of manna, and their water is a healing for eye (diseases). And the ʿAjwah* are from Paradise, and they are healing for possession.”** Another chain from Abu Saʿeed from the Prophet ﷺ with similar wording.  

ابن ماجة:٣٤٥٣حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ حَدَّثَنَا أَسْبَاطُ بْنُ مُحَمَّدٍ حَدَّثَنَا الأَعْمَشُ عَنْ جَعْفَرِ بْنِ إِيَاسٍ عَنْ شَهْرِ بْنِ حَوْشَبٍ عَنْ أَبِي سَعِيدٍ وَجَابِرٍ قَالاَ قَالَ

رَسُولُ اللَّهِ ﷺ الْكَمْأَةُ مِنَ الْمَنِّ وَمَاؤُهَا شِفَاءٌ لِلْعَيْنِ وَالْعَجْوَةُ مِنَ الْجَنَّةِ وَهِي شِفَاءٌ مِنَ الْجَنَّةَ حَدَّثَنَا عَلِيُّ بْنُ مَيْمُونٍ وَمُحَمَّدُ بْنُ عَبْدِ اللَّهِ الرَّقِّيَّانِ قَالاَ حَدَّثَنَا سَعِيدُ بْنُ مَسْلَمَةَ بْنِ هِشَامٍ عَنِ الأَعْمَشِ عَنْ جَعْفَرِ بْنِ إِيَاسٍ عَنْ أَبِي نَضْرَةَ عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ عَنِ النَّبِيِّ ﷺ مِثْلَهُ