The Prophet (ﷺ) used to say in his supplications:
اَللَّهُمَّ قَنِّعْنِيْ بِمَا رَزَقْتَنِيْ وَبَارِكْ لِي فِيهِ وَأَخْلِفْ عَلَيَّ كُلَّ غَائِبَةٍ لِي بِخَيْرٍ
Pronunciation
Allaahumma qanni`ni bimaa razaqtani wa baarik lee feehi wa akhlif ‘alayya kulla ghaa'ibatin lee bikhayr
Meaning
O Allah, make me content with the provision You have given me and bless me in it and appoint good for me in every thing which I do not have.
Source: Hasan (Ibn Hajar). Futuhatur Rabbaniyyah: 4/383
Duas from IslamicAPI's Masnun Dua dataset (based on the Quran, hadith, Hisnul Muslim and Rahe Belayat). See the dataset