اللَّهُمَّ انْفَعْنِي بِمَا عَلَّمْتَنِي، وَعَلِّمْنِي مَا يَنْفَعُنِي، وَزِدْنِي عِلْمًا
Allahumma-nfa'ni bima 'allamtani, wa 'allimni ma yanfa'uni, wa zidni 'ilma
O Allah, fais-moi profiter de ce que Tu m'as enseigné, enseigne-moi ce qui me sera utile, et augmente ma science.
Recite before studying or attending a lesson
This comprehensive dua asks for beneficial knowledge, understanding, and increase in learning.