On Traditions From al-Ridha About Unity
ʿUyūn akhbār al-Riḍā|Volume 1|Book 2|Chapter 11
25 - وَبِهذَا الإسناد عَنْ مُحَمَّدِ بْنِ سَنان قالَ سَأَلْته - يَعْنِي الرِّضا عَلَيْهِ السَّلامُ - عَنِ الاسم ما هُوَ؟ فَقالَ: صِفَةٌ لِمَوصُوف.
11-25 According to the same documentation, it is narrated that Muhammad ibn Sinan asked him صلى الله عليه وعلى آله وسلم (i.e. Al-Ridha صلى الله عليه وعلى آله وسلم) what a name is. The Imam صلى الله عليه وعلى آله وسلم replied, “It is something to describe something else with.”