Sayyiduna Samurah bin Jundub (may Allah be pleased with him) said: After finishing the prayer, the Messenger of Allah (peace and blessings be upon him) turned towards us and said: "Did any of you see a dream last night?"
(b) The Messenger of Allah (peace and blessings be upon him) said: "Last night I saw two men come to me. They took hold of me and brought me out to a level land or an open space."
(c) He (peace and blessings be upon him) said: "We came to a river of blood in which there were men, and on the bank of the river a man was standing with stones in his hand. When the man in the river came forward and wanted to come out of the river, the man standing outside the river would throw a stone at his mouth and push him back into the river. Every time he wanted to come out of the river, he would throw a stone at his mouth and send him back. I said to the two of them: What is this? He replied: The one you saw in the river was the consumer of usury."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب البيوع / 10470