Sahih al-Bukhari - Book 30, Hadith 36
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Narrated Hisham's father: Aisha said, "Allah's Messenger (ﷺ) used to kiss some of his wives while he was fasting," and then she smiled.
How the Prophet ص modelled this behaviour here
Affection & Tenderness
“Allah's Messenger (ﷺ) used to kiss some of his wives while he was fasting”
Openly expresses love, affection and tenderness to his wife through warmth, closeness and kind gestures.