The Sufficient (Vol 2) · Hadith 1419 (#Ḥadīth #2)
Chapter 169 | Paganism Considering Things as Partners of Allah
2ـ عَنْهُ عَنْ عَبْدِ الله بْنِ مُسْكَانَ عَنْ أَبِي الْعَبَّاسِ قَالَ سَأَلْتُ أَبَا عَبْدِ الله (عَلَيهِ السَّلام) عَنْ أَدْنَى مَا يَكُونُ بِهِ الإنْسَانُ مُشْرِكاً قَالَ فَقَالَ مَنِ ابْتَدَعَ رَأْياً فَأَحَبَّ عَلَيْهِ أَوْ أَبْغَضَ عَلَيْهِ.
2. It is narrated from him (narrator of the Hadith above) from ‘Abd Allah ibn Muskan from abu al-‘Abbas who has said the following: “Once I asked Abu ‘Abdillah about the minimum degree of al-Shirk (paganism). The Imam said, ‘It is one’s inventing an opinion and thereafter love and hate (people) on that basis.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).