The Source of Traditions on Imam al-Riḍā (Vol 2) · Hadith 30 (#Ḥadīth #30)

30 - وَبِهذَا الإِسنادِ قالَ: قالَ رَسُولُ اللَّهِ صَلَّى اللهُعَلَيْهِ وَآلِهِ: ما مِن قَوْمٍ كانَتْ لَهُم مَشوَرَةٌ فَحَضَرَ مَعَهُمْ مَنِ اسْمُهُ مُحَمَّدٌ وَأَحْمَدُ [وَحامِدٌ ومَحمودٌ] فَأَدخَلُوهُ فِي مَشُورَتِهِم الّا خِيرَ لَهُم.

31-30 According to the same documentation, God’s Prophet (S) said, “If any tribe has a council in which they have members called Muhammad or Ahmad and they seek their counsel, they will benefit from doing this.”

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).