Satan's beard

Nasruddin dreamt that he had Satan's beard in his hand. Tugging the hair he cried: "The pain you feel is nothing compared to that which you inflict on the mortals you lead astray." And he gave the beard such a tug that he woke up yelling in agony. Only then did he realise that the beard he held in his hand was his own.

The Mullah shouts: 'A pious man grows a beard!' 

and Nasruddin replies: 'Then my goat is the most pious of all'