It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Just as Allah has distributed your sustenance among you, so has He distributed your character. Allah gives the world to both those whom He loves and those whom He does not love, but He gives religion only to those whom He loves. Therefore, whoever Allah has granted religion, let him know that Allah loves him. By the One in Whose hand is my soul, no person can be a Muslim until both his heart and tongue become Muslim, and no person can be a believer until his neighbor is safe and secure from his 'bawa’iq'." The Companions (may Allah be pleased with them) asked: "O Messenger of Allah (peace and blessings be upon him), what is meant by 'bawa’iq'?" He replied: "Oppression and injustice. And there is no person who acquires unlawful wealth and spends from it, and then there is blessing in it, or gives charity from it and it is accepted, and whatever he leaves behind will only add to the fire of Hell. Allah does not erase sin with another sin; rather, He erases sin with goodness and virtue. Filth is not removed by filth."