The Sufficient (Vol 6) · Hadith 215 (#Ḥadīth #3)
Chapter 37 | Intelligence of a Boy and Signs of his Nobility
وَ رُوِيَ أَنَّ أَكْيَسَ الصِّبْيَانِ أَشَدُّهُمْ بُغْضاً لِلْكُتَّابِ .
3. It is narrated that:"the most intelligent child is the one who hates al-Kuttab (the writers) school the most.’”
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).