Sayyiduna Abu Huraira (may Allah be pleased with him) narrates: The following statement of the Prophet (peace and blessings be upon him) has reached us: "Beware of oppression, for oppression will appear as darknesses on the Day of Resurrection in the presence of Allah Almighty. And beware of foul language, for Allah Almighty does not like those who use foul and obscene speech. And beware of miserliness, for miserliness compelled those before you to shed each other's blood, violate the rights of kinship, and declare lawful those things which were declared unlawful."