اللَّهُمَّ اكْفِنِي بِحَلَالِكَ عَنْ حَرَامِكَ وَأَغْنِنِي بِفَضْلِكَ عَمَّنْ سِوَاكَ
Allahummak-fini bi halalika 'an haramik, wa aghnini bi fadlika 'amman siwak
O Allah, let what You have made lawful be enough for me so that I need nothing unlawful, and by Your generosity make me free of need for anyone but You.
'Ali ibn Abi Talib taught this to a man burdened by debt, saying the Prophet ﷺ had taught it to him.