Hawzah News Agency - Ali ibn Ibrahim has narrated from Muhammad ibn ‘Isa from Yunus from Dawad ibn Farqad from someone he narrated tht Ibn Shubruma said, "I have never mentioned a hadith that I heard from Ja'far ibn Muhammad except that my heart almost trembles." He said, “My father narrated from my grandfather that Rasulullah ﷺ said,

مَنْ عَمِلَ بِالْمَقَايِيسِ فَقَدْ هَلَكَ وَأَهْلَكَ وَمَنْ أَفْتَى النَّاسَ بِغَيْرِ عِلْمٍ وَهُوَ لا يَعْلَمُ النَّاسِخَ مِنَ الْمَنْسُوخِ وَالْمُحْكَمَ مِنَ الْمُتَشَابِهِ فَقَدْ هَلَكَ وَأَهْلَكَ.

‘Those who act on the basis of analogy (qiyas), will face their destruction and lead others to their destruction. Those who give fatwas (religious verdicts) without knowledge, is unaware of abrogating and the abrogated, the clear text and that which requires interpretation, they will face destruction and lead others to their destruction.'"

Al-Kāfi, v.1, Book 2, Chapter 11