Du'a for wealth and children

اللَّهُمَّ ارْزُقْنِي مَالًا وَوَلَدًا وَبَارِكْ لِي فِيمَا أَعْطَيْتَنِي

Allahummar-zuqni malan wa waladan, wa barik li fima a'taytani

O Allah, grant me wealth and children, and bless for me what You have given me.

Adapted into the first person, with "grant me" in place of "increase", 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).