Sunan Ibn Majah Book 15, Hadith 38
“If one who can afford it delays repayment, his honor and punishment become permissible.”
“A Bedouin came to the Prophet (ﷺ) to ask him to pay back a debt that he owed him, and he spoke harshly, saying: 'I will make things difficult for you unless you repay me.' His Companions rebuked him and said: 'Woe to you, do you know who you are speaking to?' He said: 'I am only asking for my rights.' The Prophet (ﷺ) said: 'Why do you not support the one who has a right?' Then he sent word to Khawlah bint Qais, saying to her: 'If you have dates, lend them to us until our dates come, then we will pay you back.' She said: 'Yes, may my father be ransomed for you, O Messenger of Allah (ﷺ)!' So she gave him a loan, and he paid back the Bedouin and fed him. He (the Bedouin) said: 'You have paid me in full, may Allah (SWT) pay you in full.' He (the Prophet (ﷺ) ) said: 'Those are the best of people. May that nation not be cleansed (of sin) among whom the weak cannot get their rights without trouble.' ”
“I came to the Prophet (ﷺ) with a man who owed me money, and he said to me: 'Keep him.' Then he passed by me at the end of the day and said: 'What did your prisoner do, O brother of Banu Tamim?' ”