The Sufficient (Vol 2) · Hadith 580 (#Ḥadīth #4)
Chapter 70 | Concern for the Affairs of the Muslims, Giving Them Good Advice and to Benefit Them
4ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ عِيسَى عَنِ ابْنِ مَحْبُوبٍ عَنْ مُحَمَّدِ بْنِ الْقَاسِمِ الْهَاشِمِيِّ عَنْ أَبِي عَبْدِ الله (عَلَيهِ السَّلام) قَالَ مَنْ لَمْ يَهْتَمَّ بِأُمُورِ الْمُسْلِمِينَ فَلَيْسَ بِمُسْلِمٍ.
4. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from ibn Mahbub from Muhammad al-Qasim al-Hashimi from Abu ‘Abdillah who has said the following: “Whoever does not feel any concern about the affairs of Muslims is not a Muslim any longer.”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).