Du'a to increase wealth

اللَّهُمَّ أَكْثِرْ مَالِي وَوَلَدِي وَبَارِكْ لِي فِيمَا أَعْطَيْتَنِي وَأَطِلْ حَيَاتِي عَلَى طَاعَتِكَ وَأَحْسِنْ عَمَلِي وَاغْفِرْ لِي

Allahumma akthir mali wa waladi, wa barik li fima a'taytani, wa atil hayati 'ala ta'atika, wa ahsin 'amali, wagh-fir li

O Allah, increase my wealth and offspring, and bless for me what You have given me, and prolong my life in obedience to You, and rectify my deeds, and forgive me.

Adapted into the first person and appended with requests to prolong life in obedience, improve deeds, and grant forgiveness, from Ṣaḥīḥ al-Bukhārī 6334, which reads "اللَّهُمَّ أَكْثِرْ مَالَهُ وَوَلَدَهُ، وَبَارِكْ لَهُ فِيمَا أَعْطَيْتَهُ" (O Allah, increase his wealth and offspring, and bless him in what You have given him).