Sahih al-Bukhari 1928
صحيح البخاري#1928SahihNarrated Hisham's father:Aisha said, "Allah's Messenger (ﷺ) used to kiss some of his wives while he was fasting," and then she smiled
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 30:36