Muwatta Imam Malik Book of Business Transactions, Hadith 83

Yahya related to me from Malik from Uthman ibn Hafs ibn Khalda from Ibn Shihab from Salim ibn Abdullah that Abdullah ibn Umar was asked about a man who took a loan from another man for a set term. The creditor reduced the debt, and the man paid it immediately Abdullah ibn Umar disliked that, and forbade it.

وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ عُثْمَانَ بْنِ حَفْصِ بْنِ خَلْدَةَ، عَنِ ابْنِ شِهَابٍ، عَنْ سَالِمِ بْنِ عَبْدِ اللَّهِ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، أَنَّهُ سُئِلَ عَنِ الرَّجُلِ، يَكُونُ لَهُ الدَّيْنُ عَلَى الرَّجُلِ إِلَى أَجَلٍ فَيَضَعُ عَنْهُ صَاحِبُ الْحَقِّ وَيُعَجِّلُهُ الآخَرُ فَكَرِهَ ذَلِكَ عَبْدُ اللَّهِ بْنُ عُمَرَ وَنَهَى عَنْهُ .