The Sufficient (Vol 1) · Hadith 168 (#Ḥadīth #10)

10ـ مُحَمَّدُ بْنُ أَبِي عَبْدِ الله رَفَعَهُ عَنْ يُونُسَ بْنِ عَبْدِ الرَّحْمَنِ قَالَ قُلْتُ لابِي الْحَسَنِ الاوَّلِ بِمَا أُوَحِّدُ الله فَقَالَ يَا يُونُسُ لا تَكُونَنَّ مُبْتَدِعاً مَنْ نَظَرَ بِرَأْيِهِ هَلَكَ وَمَنْ تَرَكَ أَهْلَ بَيْتِ نَبِيِّهِ ﷺ ضَلَّ وَمَنْ تَرَكَ كِتَابَ الله وَقَوْلَ نَبِيِّهِ كَفَرَ.

10. Muhammad ibn abu ‘Abdallah has narrated in a marfu’ manner from Yunus ibn ’Abd al-Rahman who has said the following. “I asked (Imam) abu al-Hassan the First, ‘How would I prove that Allah is one?’” The Imam replied, “O Yunus, do not be an innovator. One who depends on his personal opinion he is destroyed. One who abandons the members of the family of his prophet, goes stray. Whoever abandons the book of Allah and the words of His prophet he becomes an unbeliever.”

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