Al-Kāfi

Hadith 793
imam-ja-farahl-al-baytwilayah
5ـ أَحْمَدُ بْنُ مُحَمَّدٍ عَنْ مُحَمَّدِ بْنِ خَالِدٍ عَنْ بَعْضِ أَصْحَابِنَا عَنْ يُونُسَ بْنِ يَعْقُوبَ عَنْ طَاهِرٍ قَالَ كُنْتُ عِنْدَ ابي جعفر (عَلَيْهِ السَّلام) فَأَقْبَلَ جَعْفَرٌ (عَلَيْهِ السَّلام) فَقَالَ أَبُو جَعْفَرٍ (عَلَيْهِ السَّلام) هَذَا خَيْرُ الْبَرِيَّةِ.
5.Ahmad ibn Muhammad has narrated from Muhammad ibn Khalid from some of our people from Yunus ibn Ya‘qub from Tahir who has said the following: “Once I was in the presence of Abu Ja‘far (a.s.) when Ja‘far (a.s.) came. Abu Ja‘far (a.s.) said, “This (Ja‘far ) is the best of the people.”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī