Below are the some of Prohibitions that are taken too Lightly by the Muslims:
1. Shirk:- Associating partners in worship with Allah.
2. Grave-worship.
3. Sacrificing to anything other than Allah.
4. Allowing what Allah has forbidden and forbidding what Allah has allowed.
5. Magic, fortune-telling and divination.
6. Astrology, or believing that the stars and planets have an influence on people’s lives and events.
7. Believing that certain things can bring benefit when the Creator has not made them so.
8. Showing off in worship.
9. Superstitious belief in omens.
10. Swearing by something other than Allah.
11. Sitting with hypocrites and wrongdoers to enjoy their company or to keep them company.
12. Lack of composure in prayer.
13. Fidgeting and making unnecessary movements in prayer.
14. Deliberately anticipating the movements of the Imam (when praying in congregation).
15. Coming to the mosque after eating onions or garlic, or anything that has an offensive smell.
16. Zinaa:- fornication and adultery.
17. Sodomy (homosexuality).
18. Not allowing one’s husband to have marital relations for no legitimate reason.
19. Asking one’s husband for a divorce for no legitimate reason.
20. Al-Zihaar.
21. Having intercourse with one’s wife during her period.
22. Having intercourse with one's wife in her rectum.
23. Not treating co-wives fairly.
24. Being alone with a Non-Mahram woman.
25. Shaking hands with a Non-Mahram woman.
26. A woman wearing perfume when going out or passing by Non-mahram men.
27. A woman traveling without a mahram.
28. Deliberately looking at a Non-mahram woman.
29. Seeing one’s womenfolk behaving in an immoral fashion and keeping silent.
30. Making false claims about a child’s lineage, or denying one’s own child.
31. Consuming Riba (usury or interest).
32. Concealing a product’s faults at the time of sale.
33. Artificially inflating prices.
34. Trading after the second call to prayer on Friday.
35. Gambling.
36. Theft.
37. Offering or accepting bribes.
38. Seizing land by force.
39. Accepting a gift in return for interceding.
40. Hiring someone and benefiting from his labour, then not paying him his wages.
41. Not giving gifts equally to one’s children.
42. Asking people for money when one is not in need.
43. Seeking a loan with no intention of repaying it.
44. Consuming Haraam wealth.
45. Drinking khamr - even a single drop.
46. Using vessels of gold and silver, or eating or drinking from them.
47. Bearing false witness.
48. Listening to music and musical instruments.
49. Gossip and backbiting.
50. Slander.
51. Looking into people’s houses without their permission.
52. Two people conversing privately to the exclusion of a third.
53. Isbaal:- Wearing clothes that come down below the ankles.
54. Men wearing gold in any shape or form.
55. Women wearing short, tight or see-through clothes.
56. Wearing wigs and hairpieces, whether made from natural or artificial hair, for men and women.
57. Men resembling women and women resembling men, in dress, speech and appearance.
58. Dyeing one’s hair black.
59. Having pictures of animate beings on clothing, walls or paper, etc.
60. Lying about one’s dreams.
61. Sitting or walking on graves, or answering the call of nature in a graveyard.
62. Not cleaning oneself properly after passing water
63. Eavesdropping on people who do not want to be heard.
64. Being a bad neighbor.
65. Writing a will for the purpose of harming one of the heirs
66. Playing backgammon.
67. Cursing a believer or someone who does not deserve to be cursed.
68. Wailing (at time of bereavement).
69. Striking or branding the face.
70. Abandoning a Muslim brother for more than three days with no legitimate reason.