Al-Baqarah 2:275

Allatheena ya/kuloona arribala yaqoomoona illa kama yaqoomu allatheeyatakhabbatuhu ashshaytanu mina almassi thalikabi-annahum qaloo innama albayAAu mithlu arribawaahalla Allahu albayAAa waharrama arribafaman jaahu mawAAithatun min rabbihi fantahafalahu ma salafa waamruhu ila Allahi wamanAAada faola-ika as-habu annarihum feeha khalidoon

Those who consume interest cannot stand [on the Day of Resurrection] except as one stands who is being beaten by Satan into insanity. That is because they say, "Trade is [just] like interest." But Allāh has permitted trade and has forbidden interest. So whoever has received an admonition from his Lord and desists may have what is past, and his affair rests with Allāh. But whoever returns [to dealing in interest or usury] - those are the companions of the Fire; they will abide eternally therein.

Those who take ribā (usury or interest) will not stand but as stands the one whom the demon has driven crazy by his touch. That is because they have said: “Sale is but like ribā.’’, while Allah has permitted sale, and prohibited ribā. So, whoever receives an advice from his Lord and desists (from indulging in ribā), then what has passed is allowed for him, and his matter is up to Allah. As for the ones who revert back, those are the people of Fire. There they will remain forever.