It is narrated from Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "There are three types of believers in the world: (1) Those who believed in Allah and His Messenger and then did not fall into any doubt, and strove in the way of Allah with their wealth and their lives; (2) The person about whom other people feel secure regarding their wealth and lives; and (3) The person who looks towards greed but abandons it for the sake of Allah Almighty."