The Prophet (ﷺ) performed the fajr prayer, after he said the Salam, he would say:
اَللَّهُمَّ إِنِّي أَسْأَلُكَ عِلْمًا نَافِعًا وَرِزْقًا طَيِّبًا وَعَمَلًا مُتَقَبَّلًا
Pronunciation
Allaahumma 'innee 'as'aluka 'ilman naafi'an, wa rizqan tayyiban, wa 'amalan mutaqabbalan
Meaning
O Allah, I ask You for knowledge that is of benefit, a good provision, and deeds that will be accepted.
Source: Sahih. Ibn Majah: 925
Read the hadith
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا شَبَابَةُ، حَدَّثَنَا شُعْبَةُ، عَنْ مُوسَى بْنِ أَبِي عَائِشَةَ، عَنْ مَوْلًى، لأُمِّ سَلَمَةَ عَنْ أُمِّ سَلَمَةَ، أَنَّ النَّبِيَّ ـ صلى الله عليه وسلم ـ كَانَ يَقُولُ إِذَا صَلَّى الصُّبْحَ حِينَ يُسَلِّمُ " اللَّهُمَّ إِنِّي أَسْأَلُكَ عِلْمًا نَافِعًا، وَرِزْقًا طَيِّبًا، وَعَمَلاً مُتَقَبَّلاً " .
It was narrated from Umm Salamah that when the Prophet (ﷺ) performed the Subh (morning prayer), while he said the Salam, he would say: ‘Allahumma inni as’aluka ‘ilman nafi’an, wa rizqan tayyiban, wa ‘amalan mutaqabbalan (O Allah, I ask You for beneficial knowledge, goodly provision and acceptable deeds).’” [Sahih (Albani). Ibn Majah: 925]
Duas from IslamicAPI's Masnun Dua dataset (based on the Quran, hadith, Hisnul Muslim and Rahe Belayat). See the dataset