Hisnul Muslim

Supplication said to the debtor when his debt is settled

بارَكَ اللهُ لَكَ في أَهْلِكَ وَمالِك، إِنَّما جَـزاءُ السَّلَفِ الْحَمْدُ والأَداء

May Allah bless for you, your family and wealth. Surely commendation and payment are the reward for a loan.