What is the ruling of the Sharia on borrowing money with interest, and what is its expiation?

You have done well by regretting the sin, and the one who repents from a sin is like one who has no sin. The money borrowed from an interest-based loan must be returned without interest, if possible. If not possible, for example, if legally obligated to pay the interest, then pay it along with seeking forgiveness. What is bought with the loan becomes the property of its owner. Sincere repentance includes regret, abstaining from the sin, and resolving not to return to it. There is no specific expiation for this sin, and it is recommended to increase good deeds.