یٰۤاَیُّهَا الَّذِیْنَ اٰمَنُوا اتَّقُوا اللّٰهَ وَ ذَرُوْا مَا بَقِیَ مِنَ الرِّبٰۤوا اِنْ كُنْتُمْ مُّؤْمِنِیْنَ(۲۷۸)فَاِنْ لَّمْ تَفْعَلُوْا فَاْذَنُوْا بِحَرْبٍ مِّنَ اللّٰهِ وَ رَسُوْلِهٖۚ-وَ اِنْ تُبْتُمْ فَلَكُمْ رُءُوْسُ اَمْوَالِكُمْۚ-لَا تَظْلِمُوْنَ وَ لَا تُظْلَمُوْنَ(۲۷۹)

Translation from Kanz-ul-Iman: O people who believe! Fear Allah and forego the remaining usury, if you are Muslims. And if you do not, then be certain of a war with Allah and His Noble Rasool; and if you repent, take back your actual amount; neither you cause harm to someone, nor you be harmed.

(Part 3, Surah Al-Baqarah, Ayah 278-279)

It was also said at another place:

اَلَّذِیْنَ یَاْكُلُوْنَ الرِّبٰوا لَا یَقُوْمُوْنَ اِلَّا كَمَا یَقُوْمُ الَّذِیْ یَتَخَبَّطُهُ الشَّیْطٰنُ مِنَ الْمَسِّؕ-ذٰلِكَ بِاَنَّهُمْ قَالُوْۤا اِنَّمَا الْبَیْعُ مِثْلُ الرِّبٰواۘ- وَ اَحَلَّ اللّٰهُ الْبَیْعَ وَ حَرَّمَ الرِّبٰواؕ-

Translation from Kanz-ul-Iman: Those who devour usury will not stand up on the Day of Judgement, except like the one whom an evil jinn has deranged by his touch; that is because they said, ‘Trade is also like usury!’; whereas Allah has made trading lawful and forbidden usury. (Part 3, Surah Al-Baqarah, Ayah 275)

Commenting on the above-mentioned blessed Ayah, ‘Allamah Maulana Sayyid Muhammad Na’eemuddin Muradabadi رَحْمَةُ اللهِ تَعَالٰی عَلَيْه has stated: As a person who is under the influence of a jinn cannot stand straight and walks unsteadily, the usurer [i.e. the one who receives interest] will be in the same state on the Day of Judgement. His abdomen will be heavy with usury and he will fall down due to its burden. He رَحْمَةُ اللهِ تَعَالٰی عَلَيْه has further stated: This Ayah has declared usury to be Haraam and has condemned the usurers. There are various good reasons for declaring usury to be Haraam. Some of them are as follows: