﴿ يَٰيَحْيَىٰ خُذِ ٱلْكِتَٰبَ بِقُوَّةٍۢ ۖ وَءَاتَيْنَٰهُ ٱلْحُكْمَ صَبِيًّۭا ﴾

“[And when the son was born and grew up, he was told,] "O John! Hold fast unto the divine writ with [all thy] strength!" - for We granted him wisdom "while he was yet a little boy,”

Please check ayah 19:15 for complete tafsir.