Shaykh Uthaymeen said, “I warn my Muslim brothers against what some stupid people do when they narrate april jokes. This lie have they taken from the jews, the christians, fire-worshipers (Majoos) and other disbelievers.
Not only is this act a lie, which is in itself forbidden according to the Sharî’ah, it also involves imitating the disbelievers, which is forbidden. The prophet (salla Allahu ‘alayhi wa sallam) said, “Whoever imitates a people belongs to them.”
Shaykh Al-Islam Ibn Taymiyyah (rahimahullah) said, “Its chain of narration is good.”
The least one could say is that it is forbidden, even if it seemingly entails disbelief.
Together with these two sins, the Muslim becomes humiliated before his enemy. It is generally known that the one who is imitated boasts before the imitator and sees himself as being in front of him. The imitator thus becomes weak so that he imitates him. The believer thus becomes degraded since he subjugates himself and follows the disbelievers.
[Another] sin is that this filthy lie is sometimes about taking someone else’s money unjustly and scaring the Muslims. They maybe lie and tell the family that they will be having guests and as a result thereof they prepare a great meal and meat and the like.
They might also lie and tell them horrifying news of a relative being run over by a car or the like. This is not allowed.”
Posted by Abdul Kareem Ibn Ozzie