SHAFAQNA – Imam Sadeq (AS) said: Attachment to this world will lead to selfishness. The connection between this world and selfishness is that when a person is attached to the world and collects more of it, will see himself superior to others. Greed will be the legacy forÂ the person who the world appears beautiful to him. Greed is when things look nice to a person and he wants to have them. Collecting unnecessary things is also greed. The one who is always looking at what other people have, will not look towards God because he has attained the wicked characteristic of greed .
 Rasael Bandegy by Ayatollah Sheikh Mojtaba Tehrani, page 202.