Sahih Muslim

Sahih Muslim 2151

It Is Permissible To Say: "O My Son" To Someone Other Than One's Son, And It Is Recommended To Speak Kindly
Arabic hadith text
حَدَّثَنَا مُحَمَّدُ بْنُ عُبَيْدٍ الْغُبَرِيُّ، حَدَّثَنَا أَبُو عَوَانَةَ، عَنْ أَبِي عُثْمَانَ، عَنْ أَنَسِ بْنِ، مَالِكٍ قَالَ قَالَ لِي رَسُولُ اللَّهِ صلى الله عليه وسلم‏"‏ يَا بُنَىَّ ‏"
Translation
Anas b Malik reported that Allah's Messenger (ﷺ) addressed me

O My Son.