SAY NO TO APRIL FOOL DAY..
Islam is a religion of truthfulness, which teaches human beings to be truthful and honest in all walks of life. It prohibits deception and hurting others. Lying and fabrication leads to innumerable sins which drag one down in to hell. To become a perfectly-mannered person it is necessary to refrain from lying.
April fool is nothing but a compendium of many sins and evils like lying, cheating, hurting others, etc. For this reason, the Shariah disallows it. The Holy Prophet (Sallallahu alaihi wa sallam) has prohibited one from lying:
Translation of Hadith: You refrain from lying and deception as it leads to disobedience and sin and human beings lie and search for opportunities to lie, to the point that he (or she) is written down as a liar with Allah Ta'ala.
(Sunan Abu Dawood, Vol. 2, Pg No: 681, Jame' Tirmidhi Vol. 2, Pg No: 18)
Lying is a great sin, whether in solemnity or in fun. There are severe warnings for those lie for fun and joke. There is a Hadith in Sunan Abu Dawood:
Translation of Hadith: Destruction and ruin is for that person who resorts to lying to make people laugh. There is ruin for him, there is ruin for him! Telling one's brother something which he considers as true although it is totally false is a great dishonesty.
(Sunan Abu Dawood, Vol. 2, Pg No: 681)
There is a Hadith in At Targhib Wat Tarhib:
Translation of Hadith: Hadhrat Sufyan bin Usaid al Hadhrami (May Allah Ta'ala be well pleased with him) narrates: I heard the Holy Prophet (Sallallahu alaihi wa sallam) say: It is a huge deception that you tell your brother something to the point that he believes you although you are lying to him.
In April Fool, lying and hurting others is present, even though for some time. Islam has prohibited lying and deception. The Holy Prophet (Sallallahu alaihi wa sallam) said:
Translation of Hadith: Muslim is the brother of another Muslim, he is not to abandon him without help nor humiliate him.
(Sahih Muslim, on the authority of Zujajatul Masabeeh, Vol. 4, Pg No: 97).
There is a Hadith in Sunan Abu Dawood:
Translation of Hadith: Whoever deceives is not from among us.
April Fool is in fact a custom of Christians. Muslims should completely avoid the wrong beliefs and immoral and immodest customs of other religions. The Holy Prophet (Sallallahu alaihi wa sallam) has prohibited from imitation of other communities. There is a Hadith in Mishkaat on the authority of Jame Tirmidhi:
Translation of Hadith: It has been narrated on the authority of Hadhrat Abdullah Bin Umar (May Allah Ta'ala be well pleased with him) that the Holy Prophet (Sallallahu alaihi wa sallam) said: Do not imitate/follow Jews and Christians. Those who follow other communities have been declared as members of that community.
From the above mentioned Hadith, it is clear that jokes, etc in the name of April Fool is in fact deceiving, cheating and hurting people, which is a base and degenerate sin. It is all the more bases because it is against the rights of the people (Huquq ul 'ibaad). It should be remembered about the rights of the people that even after repentance (tauba), these sins are not forgiven until the concerned person forgives them.