Love for this World is an Attribute of Infidels and a Source of Sins

Deep involvement in material world is, from viewpoint of religion condemnable because the Holy Quran has regarded love for world an attribute of disbelievers. Almighty says, Surely those who do not hope in Our meeting and are pleased with this world's life and are content with it, and those who are heedless of Our communications: (10:7) It means that the unbelievers are happy with their worldly life. At another place: ...are you contented with this world's life instead of the hereafter? But the provision of this world's life compared with the hereafter is but little. (9:38) Which means: Have you given preference to the material worldly life over the Hereafter? Referring to Jews it says: ...everyone of them loves that he should be granted a life of a thousand years, and his being granted a long life will in no way remove him further off from the chastisement, and Allah sees what they do. (2:96)

Meaning that every one of them likes that he should live in this world for a thousand years. There are many verses like this in Holy Quran. Similarly there are innumerable traditions and narrations. Here we mention a famous tradition of the Holy Prophet from the book Usoole Kafi: The root all evil is love for this world.