اللَّهُمَّ اكْفِنِي بِحَلَالِكَ عَنْ حَرَامِكَ وَأَغْنِنِي بِفَضْلِكَ عَمَّنْ سِوَاكَ
Transliteration
Allahummakfini bihalalika 'an haramika wa aghnini bifadlika 'amman siwak
English meaning
O Allah, suffice me with what You have allowed instead of what You have forbidden, and make me independent of all others besides You.
When is it recited?
Recited when burdened with debt and seeking provision.
Its virtue
Even if the debt were as great as a mountain, Allah would settle it.
Source
Tirmidhi, Da'awat 110, 3563