Du'as Before/during Study

[ummtaalib]

اللَّهُمَّ لا سَهْلَ إلَّا مَا جَعَلْتَهُ سَهْلاً وَ إنْتَ تَحْعَلُ الْحزْنَ إذَا شِئْتَ سَهْ

Allahumma la sahla illa ma ja'altu sahla, wa 'anta taj-alul hazna idha shi'ta sahla
O Allah! There is nothing easy except what You make easy, and You make the difficult easy if it be Your Will
[ibn Hibban]

اللَّهُمَّ الْطُفْ بِىْ فِىْ تَيْسِيْرِ كُلِّ عَسِيْرٍ فَاِنَّ تَيْسِيْرَ ; كُلِّ عَسِيْرٍ عَلَيْكَ يَسِيْرٌَ

Allahumma Tufiltuf bi fi taysiri kulli 'asirin, fainna taysirra kuuli 'asirin 'alaika yassirun
O Allah! Make easy for me every difficult thing, with Your special favour and Kindness, for it is easy for You to make every difficult thing easy

أللِّهُم النّفَعنِي بِمَا عَلَّمتَنِي وَ عَلِّمنِيِ مَا يَنفَعنِي

Allahumma infa'nii bimaa 'allamtanii wa'allimnii maa yanfa' unii
O Allah! Make useful for me what You taught me and teach me knowledge that will be useful to me.

اللهم اني اسالك العفو والعافية

Allahumma inni as'alukal 'afuwawal-afiya
O Allah! I seek your forgiveness and well being (meaning in examination, memory, and concentration etc)

اَللَّهُمَّ إِنِّي أَسْأَلُكَ عِلْمًا نَافِعًا , وَ رِزْقًا طَيَّبًا , وَ عَمَلاً مُتَقَبَّلاً

Allahumma inni as'aluka 'Ilman naafi'an, wa rizqan tayyiban, wa 'amalan mutaqabbalan
O Allah! I ask You for knowledge that is of benefit, a good provision and deeds that will be accepted.
[ibn Majah and others]

اللَّهُمَّ اِنِّى اَسْئَلُكَ مِنَ الْخَيْرِ كُلِّه عَاجِله وَ اجِلِه مَا عَلِمْتُ مِنْهُ وَ مَا لَمْ اَعْلَمْ

Allahumma inni as'aluka min al khairi kullihi 'ajilihi wa ajilihi, ma 'alimtu minhu wa ma lam a'alam
O Allah! I ask You for all the good which is in the present or in the future, which I know and which I do not know
[a comprehensive du'a taught to Aisha by the Prophet (saws)]