Everything from Allah and the Holy Prophet Sallallaahu alayhi wasallam should be admitted and believed to be true

One's Faith (Imaan) is complete when everything from Allah and the Holy Prophet Sallallaahu alayhi wasallam is admitted and believed to be true. To doubt Allah or the Prophet Sallallaahu alayhi wasallam in anything or to contradict or to find fault with or to ridicule them disrupts the Faith (Imaan).

Not to admit and believe the clear meaning of the Holy Qur’aan or Hadith (Traditions) or to twist their meaning according ones own choice, is anti-religion and against the Faith (Imaan).

To think a sin to be permissible extinguishes the Faith.

However major a sin may be, but so long as it is believed to be bad, it will not disrupt the Faith (Imaan) and will only weaken it.

Mas’alah 1: To lose fear of Allah or to lose hope in Him amounts to Kufr (disbelief).

Mas’alah 2: It is Kufr (disbelief) to ask someone about things to be or matters of mystery and to believe in them.

Mas’alah 3: No one, except Allah, knows about the unknown. But Prophets through Wahee (revelations), Auliyaa (saints) by inspirations and common men through certain signs may know about them.

Mas’alah 4: To call a person Kaafir (disbeliever) by name or to curse him is a major sin. Of course we can say that the tyrants and the liars be cursed. But it is not a sin to curse those persons who have been cursed by Allah or the Holy Prophet Sallallaahu alayhi wasallam as doomed and disbelievers by their names.
Two angels Munkir and Nakeer enquire from the dead in his Grave