اللَّهُمَّ انْفَعْنِي بِمَا عَلَّمْتَنِي وَعَلِّمْنِي مَا يَنْفَعُنِي وَزِدْنِي عِلْمًا
Allahumma-nfa'ni bima 'allamtani, wa 'allimni ma yanfa'uni, wa zidni 'ilma
O Allah, benefit me from what You have taught me, teach me what will benefit me, and increase me in knowledge.
This du'a is perfect before studying or seeking any kind of knowledge. It asks for three things in a beautiful sequence: make useful what I already know, then teach me more useful things, then keep increasing my knowledge.
Related Du'as
اللَّهُمَّ أَلْهِمْنِي رُشْدِي وَأَعِذْنِي مِنْ شَرِّ نَفْسِي
O Allah, inspire me with right guidance and protect me from the evil of myself.
Hasanاللَّهُمَّ إِنِّي أَسْتَخِيرُكَ بِعِلْمِكَ وَأَسْتَقْدِرُكَ بِقُدْرَتِكَ وَأَسْأَلُكَ مِنْ فَضْلِكَ الْعَظِيمِ فَإِنَّكَ تَقْدِرُ وَلَا أَقْدِرُ وَتَعْلَمُ وَلَا أَعْلَمُ وَأَنْتَ عَلَّامُ الْغُيُوبِ اللَّهُمَّ إِنْ كُنتَ تَعْلَمُ أَنَّ هَذَا الْأَمْرَ خَيْرٌ لِّي فِي دِينِي وَمَعَاشِي وَعَاقِبَةِ أَمْرِي فَاقْدُرْهُ لِي وَيَسِّرْهُ لِي ثُمَّ بَارِكْ لِي فِيهِ وَإِنْ كُنتَ تَعْلَمُ أَنَّ هَذَا الْأَمْرَ شَرٌّ لِّي فِي دِينِي وَمَعَاشِي وَعَاقِبَةِ أَمْرِي فَاصْرِفْهُ عَنِّي وَاصْرِفْنِي عَنْهُ وَاقْدُرْ لِيَ الْخَيْرَ حَيْثُ كَانَ ثُمَّ أَرْضِنِي بِهِ
O Allah, I seek Your guidance through Your knowledge, and I seek ability through Your power, and I ask of Your great bounty. You are capable and I am not. You know and I do not. And You are the Knower of the unseen. O Allah, if You know this matter is good for me in my religion, my livelihood, and the outcome of my affairs — decree it for me, make it easy for me, and bless me in it. And if You know this matter is bad for me in my religion, my livelihood, and the outcome of my affairs — turn it away from me and turn me away from it, and decree for me what is good wherever it may be, then make me content with it.
Sahihرَبَّنَا أَتْمِمْ لَنَا نُورَنَا وَاغْفِرْ لَنَا إِنَّكَ عَلَىٰ كُلِّ شَيْءٍ قَدِيرٌ
Our Lord, perfect our light for us and forgive us. Indeed, You are over all things capable.
Sahihرَبِّ زِدْنِي عِلْمًا
My Lord, increase me in knowledge.
Sahih