Sunan Abi Dawud, Hadith 2373 ⓘ
Al-A'mash said: I did not see any of our companions who abominated the use of collyrium by a man who fasting. Ibrahim would permit the man who was fasting to apply collyrium with aloes.
حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ الْمُخَرِّمِيُّ، وَيَحْيَى بْنُ مُوسَى الْبَلْخِيُّ، قَالاَ حَدَّثَنَا يَحْيَى بْنُ عِيسَى، عَنِ الأَعْمَشِ، قَالَ مَا رَأَيْتُ أَحَدًا مِنْ أَصْحَابِنَا يَكْرَهُ الْكَحْلَ لِلصَّائِمِ وَكَانَ إِبْرَاهِيمُ يُرَخِّصُ أَنْ يَكْتَحِلَ الصَّائِمُ بِالصَّبِرِ .
also referenced under: Hadith 2379 (DarusSalam)