Narrated Abu Huraira:
Allah’s Apostle said, ”There are three persons whom Allah will not look at on the Day of Resurrection, nor will he purify them and theirs shall be a severe punishment. They are:
- A man possessed superflous water, on a way and he withheld it from travelers.
- A man who gave a pledge of allegiance to a ruler and he gave it only for worldly benefits. If the ruler gives him something he gets satisfied, and if the ruler withholds something from him, he gets dissatisfied.
- And man displayed his goods for sale after the Asr prayer and he said, ” By Allah, except Whom None has the right to be worshipped, I have been given so much for my goods,” and somebody believes him (and buys them).”
The Prophet then recited: ”Verily! Those who who purchase a little gain at the cost of Allah’s Convenant and their oaths.” (3.77)
[Bukhari Vol 3 Book 40, Hadith 547]