Majma al-Zawaid — Hadith 164

Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "Indeed, Allah Almighty has distributed your characters among you just as He has distributed your provisions among you. Indeed, Allah Almighty gives the world both to the one He loves and to the one He does not love, but He gives religion only to the one He loves; so whoever He gives religion to (this means) that He loves him. By the One in whose hand is my soul, a servant does not become a Muslim until his heart and tongue become Muslim (or remain sound), and he does not become a believer until his neighbour is safe from his harm." I said: "O Prophet of Allah! What is meant by his harm?" The Prophet (peace and blessings be upon him) said: "His deceiving and his wrongdoing. (The Prophet (peace and blessings be upon him) further said:) It does not happen that a man earns wealth unlawfully and then spends from it (in the path of Allah) and it is blessed for him, or that he gives charity from that wealth and it is accepted from him. If he leaves such wealth behind him, that wealth will be his provision for the journey to Hell. Indeed, Allah Almighty does not erase evil with evil; rather He erases evil with good, for an impure thing does not erase an impure thing."
Ahmad recorded it. Some of the narrators of its chain are mastur (of unknown condition), while most of them are thiqat (trustworthy).