‏البيوع : Hadeeth No:3796 Abu Huraira (Allaah be pleased with him) reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: Delay (in the payment of debt) on the part of a rich man is injustice, and when one of you is retired to a rich man, he should follow him....

‏الصلاة : Hadeeth No:913 This hadith his been narrated by 'Abu al-Malik with the same chain of transmitters....