Jami` at-Tirmidhi 2069
"Qatadah said:
"It was narrated to me that Abu Hurairah said: 'I took three truffles, or five, or seven, and pressed them. Then I put their liquid in a bottle, and I used it on the eyes of a slave girl of mine so she was cured.'"
حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، قال حَدَّثَنَا مُعَاذٌ، قال  حَدَّثَنَا أَبِي، عَنْ قَتَادَةَ، قَالَ حُدِّثْتُ أَنَّ أَبَا هُرَيْرَةَ قَالَ أَخَذْتُ ثَلاَثَةَ أَكْمُئٍ أَوْ خَمْسًا أَوْ سَبْعًا فَعَصَرْتُهُنَّ فَجَعَلْتُ مَاءَهُنَّ فِي قَارُورَةٍ فَكَحَلْتُ بِهِ جَارِيَةً لِي فَبَرَأَتْ ‏.‏