Lying and Taking False Oaths

عن عبد الرحمن بن شبل رضي الله عنه قال سمعت رسول الله صلى الله عليه و سلم يقول إن التجار هم الفجار قالوا يا رسول الله أليس قد أحل الله البيع قال بلى ولكنهم يحلفون فيأثمون ويحدثون فيكذبون )المستدرك للحاكم  رقم 2145)

Hazrat Abdur Rahmaan bin Shibl (Radhiyallahu Anhu) reports that he heard Rasulullah (Sallallahu Alaihi Wasallam) say: “The traders (generally) are transgressors.” The Sahaabah (Radhiyallahu Anhum) asked: “O Rasulullah (Sallallahu Alaihi Wasallam), has not Allah Ta’ala permitted business and trade?” Rasulullah (Sallallahu Alaihi Wasallam) replied: “Certainly, however due to the traders taking false oaths (in order to promote their merchandise) and including lies in the transactions, (they are regarded as sinners in the sight of Allah Ta’ala), and when they speak, they speak lies (thus they fall into transgression in this way).”