This excerpt is taken from Sheikh Irshad Ullah Maan's book In Search of Truth.
[1] For example, those who deny Allah's commands and unjustly kill the Prophet and kill those who judge with justice among the people, their deeds are ruined in this world and the Hereafter.
Reference: (Al Imran:22)
And whoever denies faith, his deeds are ruined and he will be among the losers in the Hereafter.
Reference: (For more references see: (Al-Ma'idah:5, 53), (At-Tawbah:17, 69), (Muhammad:9, 28, 32)
[2] Laughing and joking about matters of religion is strictly forbidden.
Reference: (At-Tawbah:65, 66)
[3] Allah Almighty intends to fill Hell, so beware of Hell.
Reference: (Hud:118, 119)
[4] Allah Almighty is the Owner of the Day of Judgment, meaning on the Day of Resurrection Allah will make all decisions and no one will be allowed to speak.
Reference: (Al-Mu’min:16), (Al-Fatiha:3)
[5] Allah Almighty is the Owner of everything in the earth and the heavens.
Reference: (An-Nisa:126, 131, 132, 170 to 172)
[6] There is only one straight path, and that is the way of the Prophets, the truthful, the martyrs, and the righteous. They will have neither fear nor grief.
Reference: (An-Nisa:69)
The straight path shown by Allah Almighty and His Messenger ﷺ is only one; all other paths taken will not be straight but will lead to Hell.[7] The scene of death, when the angels take the soul, and the duties of the angels.
Reference: (Al-A'raf:37 to 41), (An-Nahl:28, 29, 32), (Ha Mim As-Sajda:30 to 32)
[8] Lying about Allah is strictly forbidden. Lying means saying something that Allah has not said.
Reference: (An-Nisa:50), (Al-Ma'idah:103)
[9] A believer has no relation with a disbeliever or polytheist.
Reference: (Aal Imran:28), (An-Nisa:138, 139, 144), (At-Tawbah:23, 24, 28, 29, 113)
[10] The old custom of the polytheists is to say to the believers that your gods have struck you.
Reference: (Hud:54, 55)
Just as nowadays they say that your eleventh (grade) has struck you.[11] The noble Prophets, peace be upon them, told their nations that they do not ask you for any reward; their reward is with Allah.
Reference: (Hud:29, 51), (Al-An'am:90), (Yunus:72)
[12] What is the fault of the believers? What is their crime?
Reference: (Al Imran:195), (Al-Burooj: 8, 9)
(That is) believing in monotheism has always been the crime of the believers.