The Sufficient (Vol 1) · Hadith 848 (#Ḥadīth #4)
Chapter 75 | Tacit and Explicit Testimony as proof of abu Muhammad al-Hassan ‘s Divine Authority over the people after Ali ibn Muhammad
4ـ وَعَنْهُ عَنْ مُوسَى بْنِ جَعْفَرِ بْنِ وَهْبٍ عَنْ عَلِيِّ بْنِ جَعْفَرٍ قَالَ كُنْتُ حَاضِراً أَبَا الْحَسَنِ لَمَّا تُوُفِّيَ ابْنُهُ مُحَمَّدٌ فَقَالَ لِلْحَسَنِ يَا بُنَيَّ أَحْدِثْ لله شُكْراً فَقَدْ أَحْدَثَ فِيكَ أَمْراً.
4. From him who has narrated from Musa ibn Ja‘far ibn Wahab from Ali ibn Ja‘far who has said the following. “I was present with abu al-Hassan when his son Muhammad died. The Imam said this to (his son) al-Hassan , “Son renew your thanks to Allah because He has just granted you the matter (Leadership with Divine Authority).”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).