ʿUmar bin ʿUbaidullah bin Maʿmar had a problem in his eyes. He sent word to Aban bin ʿUthman ؓ - Sufyan said: He was the Ameer (of Hajj) - to ask what he should do. He said: Apply aloes to them, for I heard ‘Uthman ؓ narrate that from the Messenger of Allah ﷺ.
عَنْ نُبَيْهِ بْنِ وَهْبٍ قَالَاشْتَكَى عُمَرُ بْنُ عُبَيْدِ اللهِ بْنِ مَعْمَرٍ عَيْنَيْهِ فَأَرْسَلَ إِلَى أَبَانَ بْنِ عُثْمَانَ قَالَ سُفْيَانُ وَهُوَ أَمِيرٌ مَا يَصْنَعُ بِهِمَا؟ قَالَ قَالَ ضَمَّدَهُمَا بِالصَّبِرِ فَإِنِّي سَمِعْتُ عُثْمَانَ يُحَدِّثُ ذَلِكَ عَنْ رَسُولِ اللهِ ﷺ