Dua for settling a debt
Allāhummak-finī biḥalālika `an ḥarāmik,
wa 'aghninī bi faḍlika `amman siwāk.
O Allah, suffice me with what You have allowed instead of what You have forbidden,
and make me independent of all others besides You.
اللّهُـمَّ اكْفِـني بِحَلالِـكَ عَنْ حَـرامِـك،
وَأَغْنِـني بِفَضْـلِكِ عَمَّـنْ سِـواك
At-Tirmidhi 5/560. Al-Albani, Sahih At-Tirmidhi 3/180.