Hadith.5132 - Ishaq ibn Ammar and Samaah narrated from Abu Basir from Abu Abdullah (as) who said: I asked Imam - "What is the punishment for one who consumes usury after clear evidence (has been established)?" Imam (as) replied: "He is to be disciplined. If he returns to it, he is disciplined again. If he repeats it a third time, he is to be killed."

Translation: Bab Ul Qaim Publications — attributed by Thaqalayn·The Arabic above is the original.