The Sufficient (Vol 1) · Hadith 99 (#Ḥadīth #3)
Chapter 11 | Prohibition on Speaking without Knowledge.
3ـ مُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ عِيسَى عَنِ الْحَسَنِ بْنِ مَحْبُوبٍ عَنْ عَلِيِّ بْنِ رِئَابٍ عَنْ أَبِي عُبَيْدَةَ الْحَذَّاءِ عَنْ ابي جعفر قَالَ مَنْ أَفْتَى النَّاسَ بِغَيْرِ عِلْمٍ وَلا هُدًى لَعَنَتْهُ مَلائِكَةُ الرَّحْمَةِ وَمَلائِكَةُ الْعَذَابِ وَلَحِقَهُ وِزْرُ مَنْ عَمِلَ بِفُتْيَاهُ.
3. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from al-Hassan ibn Mahbub from Ali ibn al-Ri’ab from Abu ‘Ubayda al-Hadhdha’ that Abu Ja’far (al-Baqir) said, “Whoever gives a fatwa (a religious verdict) to people without knowledge and guidance, the angels of mercy and the angels of punishment curse him. The burden of those who act upon his fatwa will fall upon him."
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).