Proof of Islam Imam Abu Hamid Al Ghazali has listed twenty evils of tongue in Volume 3 : Book of Destructive Evils of his Opus Revival of Religious Sciences (Ihya al Uloom id Deen). These are:
(1) Unnecessary Talk
(2) Excessive Talk
(3) Telling Lies
(4) Talking About Sins
(5) Disputing (About Wealth and Property)
(6) Ornamentation in Talk
(7) Obscene Talk
(8) Cursing
(9) Singing and Poetry
(10) Laughing and Cracking Jokes
(11) Ridicule
(12) Disclosing Secret Conversations
(13) False Promising
(14) Falsehood
(15) Backbiting
(16) Slander
(17) Hypocrisy
(18) Praise
(19) Carelessness
(20) Questions About God
(A reoccurring mention in the sittings (majaalis). List of harms prepared from Maulana Fazlul Karim's translation. Publisher : Kitab Bhawan, 1214, Kalan Mahal, New Delhi (1982))
