Dua after Fajr and Asr — seeking protection
اللّهُـمَّ إِنِّـي أَسْأَلُـكَ عِلْمـاً نافِـعاً، وَرِزْقـاً...
اللّهُـمَّ إِنِّـي أَسْأَلُـكَ عِلْمـاً نافِـعاً، وَرِزْقـاً طَيِّـباً، وَعَمَـلاً مُتَقَـبَّلاً
Allahumma innee as-aluka AAilman nafiAAan, warizqan tayyiban, waAAamalan mutaqabbalan
Translation
O Allah, I ask You for beneficial knowledge, pure sustenance and accepted deeds.
When to recite
Recited after the Fajr prayer before speaking.
Source / Reference
Ibn Majah 1/152, Ahmad