Abu Hurairah (May Allah be pleased with him) said:
The Messenger of Allah (ﷺ) said, "It is an act of oppression on the part of a person to procrastinate in fulfilling his obligation; if the repayment of a debt due to any of you is undertaken by a rich person, you should agree to the substitution." <b>[Al-Bukhari and Muslim]</b>.
وعن أبي هريرة رضي الله عنه أن رسول الله صلى الله عليه وسلم قال: "مطل الغني ظلم وإذا أُتبع أحدكم على مليء فليتبع" ((متفق عليه. معنى "أتبع": أحيل)).