Honesty & fraud

O you who have believed, fear Allah and be with those who are true

Woe to those who give less [than due]

Who, when they take a measure from people, take in full

But if they give by measure or by weight to them, they cause loss

Narrated Hakim bin Hizam:The Prophet (ﷺ) said, "The buyer and the seller have the option of canceling or confirming the bargain unless they separate, and if they spoke the truth and made clear the defects of the goods, then they would be blessed in their bargain, and if they told lies and hid some facts, their bargain would be deprived of Allah's blessings

Narrated `Abdullah:The Prophet (ﷺ) said, "Truthfulness leads to righteousness, and righteousness leads to Paradise. And a man keeps on telling the truth until he becomes a truthful person. Falsehood leads to Al-Fajur (i.e. wickedness, evil-doing), and Al-Fajur (wickedness) leads to the (Hell) Fire, and a man may keep on telling lies till he is written before Allah, a liar

It is narrated on the authority of Abu Huraira that the Messenger of Allah (ﷺ) happened to pass by a heap of eatables (corn). He thrust his hand in that (heap) and his fingers were moistened. He said to the owner of that heap of eatables (corn):What is this? He replied: Messenger of Allah, these have been drenched by rainfall. He (the Holy Prophet) remarked: Why did you not place this (the drenched part of the heap) over other eatables so that the people could see it? He who deceives is not of me (is not my follower)