عَن عَائِشَة: أَن الني صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: كَانَ يُقَبِّلُهَا وَهُوَ صَائِم ويمص لسنانها. رَوَاهُ أَبُو دَاوُد

Anas told of a man coming to the Prophet and saying, “I have a complaint in my eyes, so may I apply collyrium while I am fasting?” He replied, “Yes.” Tirmidhi transmitted it, saying its isnad is not strong and Abu ‘Atika the transmitter is declared to be weak.