Surah Al-Baqarah 2:275 البقرة

After encouraging spending for His sake due to the cooperation and solidarity that it builds between Muslims, Allah warns about usury, which nullifies this, stating:

Those who indulge in usury and receive it will rise from their graves on the Day of Resurrection like a person who is afflicted by the Devil: they will stand up from their graves and then abruptly fall like a person who just suffered a seizure. This is because they made usury permissible and made no distinction between usury and that which Allah has permitted in terms of profit earned through trade and sales transactions. They claimed that trade is like usury, meaning both are lawful since both lead to increased wealth. Allah refutes their analogy and explains that He has permitted trade because of the general and specific benefit it contains, and He has prohibited usury because it is oppressive and leads to unjustly eating people's wealth without an exchange [of goods or services]. The person who repents from this sin and stops indulging in usury upon receiving Allah's prohibition and warning against it may keep the money that he received in the past from it, without any sin. Then, whatever he does from then on, Allah will judge it. Whoever returns to dealing with usury after knowing of the prohibition and evidence established against doing so deserves to enter the Fire and remain there eternally. The reference to remaining in the Fire eternally could either be for a person who justifies the indulgence in usury or referring to a long period of time for those who indulge in it while still believing in the Oneness of Allah. Eternal Hell is solely for disbelievers; as for true monotheists (Muslims), they will not remain in the Fire eternally.