Hadith on Smiling: The Prophet would always smile at Jarir

Jarir ibn Abdullah reported: The Messenger of Allah, peace and blessings be upon him, never avoided me ever since I embraced Islam. I would never see him but with a smile on his face.

Source: Ṣaḥīḥ Muslim 2475

Grade: Sahih (authentic) according to Muslim

قَالَ جَرِيرُ بْنُ عَبْدِ اللَّهِ مَا حَجَبَنِي رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ مُنْذُ أَسْلَمْتُ وَلَا رَآنِي إِلَّا ضَحِكَ

2475 صحيح مسلم كتاب فضائل الصحابة باب من فضائل جرير بن عبد الله رضي الله تعالى عنه