اللَّهُمَّ انْفَعْنِي بِمَا عَلَّمْتَنِي، وَعَلِّمْنِي مَا يَنْفَعُنِي، وَزِدْنِي عِلْمًا
Allahumma-nfa'ni bima 'allamtani, wa 'allimni ma yanfa'uni, wa zidni 'ilma
Ó Allah, beneficia-me com o que me ensinaste, ensina-me o que me beneficiará, e aumenta o meu conhecimento.
Recite before studying or attending a lesson
This comprehensive dua asks for beneficial knowledge, understanding, and increase in learning.