Sahih al-Bukhari - Book 64, Hadith 461
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Narrated `Aisha: I heard the Prophet (ﷺ) and listened to him before his death while he was leaning his back on me and saying, "O Allah! Forgive me, and bestow Your Mercy on me, and let me meet the (highest) companions (of the Hereafter)." (See the Qur'an (4:69) and Hadith #4435)
How the Prophet ص modelled this behaviour here
Affection & Tenderness
“while he was leaning his back on me”
Openly expresses love, affection and tenderness to his wife through warmth, closeness and kind gestures.