Musannaf Ibn Abi Shaybah 23404 — Consuming usury and what is reported

Amir said: I heard Sayyiduna al-Nu'man bin Bashir (may Allah be pleased with him) delivering a sermon, as he pointed with his finger to his ears. He said: I heard the Prophet (peace and blessings be upon him) (with these very ears); he (peace and blessings be upon him) said: "The lawful is clear and the unlawful is clear, and between them are some doubtful matters. Whoever guards himself from the doubtful matters has kept his religion and his honour clean and free of blame. And whoever falls into the doubtful matters falls into the unlawful, just like a shepherd who grazes his animals around a protected pasture: sooner or later they will enter the pasture. Beware, every king has a protected pasture, and Allah's protected pasture is the things He has forbidden. Beware, in the body there is a piece of flesh; if it becomes sound, the whole body becomes sound, and if it becomes corrupt, the whole body becomes corrupt. Listen, it is the human heart."