And they say: These are cattle and tilth prohibited, none shall eat them except such as We please-- so they assert-- and cattle whose backs are forbidden, and cattle on which they would not mention Allah's name-- forging a lie against Him; He shall requite them for what they forged.

And the dwellers of the Rock certainly rejected the messengers;

On the day when they shall see the angels, there shall be no joy on that day for the guilty, and they shall say: It is a forbidden thing totally prohibited.

And He it is Who has made two seas to flow freely, the one sweet that subdues thirst by its sweetness, and the other salt that burns by its saltness; and between the two He has made a barrier and inviolable obstruction.

Truly in that there is an oath for those who possess understanding.