‘A'isha said that the Prophet (ﷺ) used to kiss her and suck her tongue when he was fasting. Abu Dawud transmitted it.* *<i>Saum</i>, 34. This is said by some to be weak because Muhammad b. Dinar and Sa'd b. Aus are among its transmitters.

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