(68) باب التَّبَسُّمِ وَالضَّحِكِ
Narrated Jarir:
The Prophet (ﷺ) did not screen himself from me (had never prevented me from entering upon him) since I embraced Islam, and whenever he saw me, he would receive me with a smile. Once I told him that I could not sit firm on horses. He stroked me on the chest with his hand, and said, "O Allah! Make him firm and make him a guiding and a rightly guided man.
Reference: Sahih al-Bukhari 6089-6090
In-book reference: Book 78, Hadith 117
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 8, Book 73, Hadith 112