Abu Salih (may Allah have mercy on him) says: I sold wheat in the market and fixed a time for its payment. Then I intended to go to Kufah, and they proposed to me that I waive part of the debt and they would pay before the due time. I mentioned this to Sayyiduna Zayd bin Thabit (may Allah be pleased with him), and he said: "I do not instruct you to consume such wealth or to let others consume it."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 11138
Salim bin Abdullah (may Allah have mercy on him) says: Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) was asked about a man who is owed a debt by someone, due at a fixed term, and the creditor waives part of the debt and takes it before the due time. Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) disliked it and forbade it.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 11139
Abu al-Minhal (may Allah have mercy on him) said: I asked Sayyiduna Abdullah bin Umar (may Allah be pleased with them both): A man to whom I owe a debt said to me: Pay me the debt before its time and I will waive part of the debt for you. Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) forbade him from it and said: The Commander of the Believers, Sayyiduna Umar (may Allah be pleased with him), forbade us from selling ready goods in exchange for a debt.
A hadith with a connected chain has also been narrated about this, and there is weakness in its chain.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 11140
Sayyiduna Miqdad bin al-Aswad (may Allah be pleased with him) said: I lent a man one hundred dinars. Then my lot was drawn for an expedition that the Messenger of Allah (peace and blessings be upon him) was sending out, so I said to him: Pay me ninety dinars now and I will let go of ten dinars. He said: Very well. This was mentioned to the Messenger of Allah (peace and blessings be upon him), and he said: "O Miqdad, you have consumed usury (riba) yourself and have fed it to him as well."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 11141
Hadith Gradingمحدثین:اخرجه ابو نعيم في المرفة 6171