(Maryam) 19 : 12
يَا يَحْيَىٰ خُذِ الْكِتَابَ بِقُوَّةٍ ۖ وَآتَيْنَاهُ الْحُكْمَ صَبِيًّا
"Oh Yahya, holdfast the Book"; and We gave him the Wisdom in his childhood itself.
Since the Splendid Book Adhikr mentioned in verse 41: 41 is codified, one should holdfast It to holdfast Lord and to be guided in the Straigtpath as explained in verse 5: 48. See explanation 4: 174-175 and 12: 22.