Abu Aswad Daili says that Sayyiduna Mu'adh (may Allah be pleased with him) was in Yemen. People brought to him the case of a Jew who had died and had left behind a Muslim brother as his heir. Sayyiduna Mu'adh (may Allah be pleased with him) said: I heard the Messenger of Allah (peace and blessings be upon him) say that Islam increases, it does not decrease. Then he made that Muslim the heir of the Jew.