What 'Ali taught the indebted man
اللَّهُمَّ اكْفِنِي بِحَلَالِكَ عَنْ حَرَامِكَ، وَأَغْنِنِي بِفَضْلِكَ عَمَّنْ سِوَاكَ
Allahumma ikfini bihalalika 'an haramik, wa aghnini bifadlika 'amman siwak.
O Allah, suffice me with what You have made lawful against what You have forbidden, and enrich me by Your bounty so that I need none besides You.
Plain text (no diacritics)
اللهم اكفني بحلالك عن حرامك، وأغنني بفضلك عمن سواك