{رَبِّ زِدْنِي عِلْماً}

Oh my Lord increase me in knowledge.

This aayah is clear in showing the virtue of knowledge, because Allah The Most High, did not command the prophet (peace and blessing upon him) with asking for an increase in anything, except for knowledge.

{رَبِّ زِدْنِي عِلْماً}

واضح الدلالة في فضل العلم، لأن الله تعالى لم يأمر نبيه صلى الله عليه وسلم بطلب الازدياد من شيء إلا من العلم

From Ibn Hajr’s Explanation of Kitabul Ilm of Imam al-Bukhari as found in his work, Fath al-Bari