Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) says: When the Prophet (peace and blessings be upon him) ordered that the Banu al-Nadir be expelled from Madinah, some of their people came to him and said: "O Messenger of Allah! You have ordered that they be expelled, while they have debts owed to them by people (that are not yet due)." He said: "Reduce (the debts) and take early payment," or he said: "Settle your dealings quickly."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 11137