Al-Qasas 28:14

Walamma balagha ashuddahu wastawaataynahu hukman waAAilman wakathalikanajzee almuhsineen

And when he attained his full strength and was [mentally] mature, We bestowed upon him judgement and knowledge. And thus do We reward the doers of good.

And when he reached his maturity and became perfect, We gave him wisdom and knowledge. This is how We reward those who are good in their deeds.