(Yoosuf) 12 : 22
وَلَمَّا بَلَغَ أَشُدَّهُ آتَيْنَاهُ حُكْمًا وَعِلْمًا ۚ وَكَذَٰلِكَ نَجْزِي الْمُحْسِنِينَ
And when Yoosuf reached maturity, We gave him the Wisdom and Knowledge; and thus, We reward the Muhsins.
The Wisdom and Knowledge mentioned in this verse are Adhikr. Muhsins are those who live under the Light of Adhikr. And whoever didn't testify the Best Book among Arabic Quran reading Fujjar, at the time of their death Lord will tell them: "You were among the disbelievers" as explained in verse 10: 27. See explanation 6: 84; 10: 26 and 11: 115 and 120.