Sins of the Tongue

Among the sins of the tongue are:

1. To commit gossip [ghibah] i.e., to say something true about a Muslim in his absence that he hates to be said
2. Talebearing between two or more Muslims to stir up trouble between them [namimah]
3. Stirring up trouble without passing words between others – even if it is goading animals to fight each other [tahrish]
4. To lie, i.e., to say what is different from the truth
5. To commit perjury, i.e., to solemnly swear to a lie
6. Every word which attributes adultery or fornication [zina] to a person or to one of his relatives either explicitly or implicitly with that intention. The punishment for he who is free is eighty lashes; the slave receives one-half of that
7. To cuss the Companions
8. To give false testimony
9. To procrastinate paying one’s debt when it is due and one is able
10. To curse, mock, or utter what harms a Muslim
11. To lie about Allah and His Messenger, Allah bless him and give him peace
12. To make a false claim
13. To divorce one’s wife while she is menstruating or during a period of purity [tuhr] in which he had sexual intercourse with her [bid'iyy divorce]
14. To utter the dhihar, which is to say to one’s wife: “I now do not copulate with you just as I do not copulate with my mother.” If one does not divorce immediately after uttering this, he is obliged to perform an expiation [kaffarah] which is to free a Muslim slave who has no defects; if unable, to fast two consecutive lunar months; and if unable, to feed sixty poor Muslims sixty mudds
15. To commit mistakes when reciting the Qur’an whether or not those mistakes change the meaning
16. For the one who is solvent to beg
17. To utter a vow [nadhr] with the purpose of depriving the inheritor
18. To neglect leaving a will which states one’s debts or trusts to others no one other than oneself knows
19. To attribute oneself to other than one’s own father or liberator, such as to say: “So and so liberated me,” naming as his liberator someone other than the one who liberated him
20. To propose to a woman after she is already engaged to another Muslim
21. To give an Islamic legal opinion [fatwa] without knowledge
22. To teach or to seek harmful knowledge without an Islamically valid reason
23. To judge by other than the Law of Allah
24. To wail and to lament the good attributes of the deceased as if he is hearing
25. To utter words which encourage one to do the unlawful or discourage one from doing the obligatory
26. To utter words which defame Islam, one of the prophets or scholars, the Qur’an, or any of the rites of Allah
27. To play flutes
28. To refrain from commanding the obligations [ma'ruf] and forbidding the unlawful [munkar] without an excuse
29. To withhold the Obligatory Knowledge from the one who requests it
30. To laugh because a Muslim passed gas or to laugh at a Muslim to degrade him
31. To withhold testimony
32. To neglect returning the Islamic salutation i.e as-salamu ‘alaykum
33. For the one with the intention to be in a state of pilgrimage [muhrim] of the Hajj or ‘Umrah or the one involved in the obligatory fast to give an arousing kiss intentionally
34. To kiss those whom one is not allowed to kiss

And Allah and His Messenger know best!