Those seven which cause [one to burn in Hell Fire] are...

Those seven which cause [one to burn in Hell Fire] are: killing an innocent person; causing distress to one's parents [by not upholding their rights]; dabbling in usury; at-ta'arrub ba'd al-hijra; wrongfully accusing a married woman of adultery; unlawfully confiscating the property of the orphan; and running away from the battle-field in jihad."[^2] Muhammad bin Muslim narrates from Imam as-Sadiq (a.s.): "The major sins are seven; intentionally killing a believer; wrongfully accusing a married woman of adultery; running away from the battle-field in jihad; at-ta'arrub ba'd al-hijra; unlawfully confiscating the property of the orphan; dabbling in usury; and every act for which [the punishment of] the Fire has been promised"?

^3 'Ubaydullah bin Zurarah narrates that he asked Imam as-Sadiq (a.s.) about the major sins. The Imam said, "In the book of [Imam] 'Ali, they are seven: disbelieving in Allah; killing a person; causing distress to one's parents; dabbling in usury; unlawfully confiscating the property of the orphan; running away from the battle-field in jihad; at-ta'arrub ba'd al-hijra." Then he asked, "So these are the most major of sins?" The Imam replied, "Yes."[^4] Imam ar-Rida (a.s.) explained the prohibition of at-ta'arrub ba'd al-hijra as follows: "Since there is the danger that because of at-ta'arrub, he [the immigrant] might abandon [Islamic] knowledge, get involved with the ignorant people, and drift away"[^5] This, however, does not mean that entering non-Muslim countries is always forbidden.

Other ahadith had described for us the reward of one who visits non-Muslim lands, the reward that every Muslim longs for.