Allah, the Most High, says, {On the Day of Judgement will thou see those who told lies against Allah;- their faces will be turned black:

is there not in Hell an abode for the Haughty?} (Az-Zummar: 60)

AI-Hasan said commenting on this ayah that: they are those who say, if we want to do something we do it but if we do not want to do it we do not.

Ibn AI-Jawziy said when interpreting the above ayah: Some scholars hold that lying about Allah and His Prophet (pbuh) is unbelief that puts one beyond the pale of Islam. There is no doubt that a premeditated lie against Allah and His Messenger that declares something which is unlawful to be permissible or something permissible to be unlawful is pure unbelief. The question (as to when it is a major sin rather than outright unbelief) only concerns lies about other than that.

The Prophet (pbuh) said, "Whoever intentionally lies about me shall have a house built in the Hell-Fire.” 1

The Prophet also said, "Whoever intentionally lies about me shall take a place for himself in Hell.”2

The prophet said, "Whoever relates words purportedly from me, thinking it is a lie, is a liar." 3

The Prophet also said, "A lie about me is not the same as a lie about someone else: whoever intentionally lies about me shall take a place for himself in Hell.”4

It was related that the Prophet (pbuh) said, "Whoever relates something from me I have not said shall take a place for himself in Hell.”5

The Prophet also said, "The Believer is created familiarized with everything except treachery and lying.” 6

We ask Allah to guide and protect us; He is the Most Generous.