Sayyiduna Jarir bin Abdullah al-Bajali (may Allah be pleased with him) said: "Since I accepted Islam, the Messenger of Allah (peace and blessings be upon him) never kept me from (coming in), and whenever he saw me, he could not help but smile."
Hadith Referenceالمعجم الكبير للطبراني / باب الجيم / 2209