Part of verse 114 of Surah Ta-Ha.
It is a short, direct prayer asking Allah to increase one in knowledge. Students and seekers of knowledge recite it before studying and throughout their lives, since it is a supplication taught by Allah Himself in the Quran.
- 20:114
فَتَعَٰلَى ٱللَّهُ ٱلْمَلِكُ ٱلْحَقُّ ۗ وَلَا تَعْجَلْ بِٱلْقُرْءَانِ مِن قَبْلِ أَن يُقْضَىٰٓ إِلَيْكَ وَحْيُهُۥ ۖ وَقُل رَّبِّ زِدْنِى عِلْمًۭا
Fata'aalal laahul Malikul Haqq; wa laa ta'jal bil Quraani min qabli ai yuqdaaa ilaika wahyuhoo wa qur Rabbi zidnee 'ilmaa
Превыше всего Аллах, Истинный Царь! Не торопись читать Коран, пока ниспослание откровения тебе не будет завершено, и говори: «Господи! Приумножь мои знания».