Lying & Deception By Ilyas Kirmani

We can say, without doubt that, lying is one of the most evil characteristics, of which all religions and systems of ethics warn against and which man's innate common sense (Fitrah) agrees that it is wrong. Any who possess normal chivalry and sound reason would be obliged to say the same.

Truthfulness is one of the pillars on which the moral survival of the world depends. It is the foundation of praiseworthy characteristics, the foundation of prophethood, the result of taqwah. Were it not for truthfulness, the rulings of all divinely-revealed laws would collapse.