It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Delay in payment by a wealthy person is injustice, and when the debt owed to one of you is transferred to a wealthy person, he should accept it."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحوالة / 11387