Mishkat al-Masabih
Mishkat al-Masabih 5829
His Character and Natural Disposition - Section 2
Arabic hadith text
وَعَنْ عَبْدِاللَّهِ بْنِ الْحَارِثِ بْنِ جَزْءٍ قَالَ: مَا رَأَيْتُ أَحَدًا أَكْثَرَ تَبَسُّمًا مِنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ رَوَاهُ التِّرْمِذِيّ
Translation
`Abdallah b. al-Harith b. Jaz' said he had seen no one more given to smiling than God's messenger. Tirmidhi transmitted it.