Hazrat Abdullah (may Allah be pleased with him) says: The one who consumes interest and the one who gives it are both equal in sin.

Hazrat Ka'b Ahbar (may Allah be pleased with him) says: "It is more preferable to me to commit adultery thirty-three times than to consume one dirham of usury. When I consume that usury, my Allah knows that I am consuming usury."

Hazrat Abdullah (may Allah be pleased with him) says: The one who consumes usury and the one who gives it are equal in sin. And the one who writes usurious transactions and the one who becomes a witness to it, when they know about it, and the woman who beautifies by tattooing and the one who gets herself tattooed, and the one who misuses charity. And among the Bedouins, whoever became an apostate after migration, upon him the curse was pronounced by the blessed tongue of the Holy Prophet (peace and blessings be upon him).

Hazrat Ibn Abbas (may Allah be pleased with both of them) said: All the doors of usury have been closed upon you. So you seek its prohibition. (You desire it.)

It is narrated from Hazrat Ali (may Allah be pleased with him) that the Holy Prophet (peace and blessings be upon him) said: Curse has been invoked upon the one who consumes usury, the one who gives it, the one who records its transactions, and the witnesses to it.

Hazrat Umar (may Allah be pleased with him) said that if the Messenger of Allah (peace and blessings be upon him) had explained three things for us, it would have been more beloved to me than the world and whatever is in it: one is the caliphate, the second is kalalah (that is, a deceased person who has neither children nor parents), and the third thing is usury.

Hazrat Aamir narrates that I heard Hazrat Nu’man bin Basheer (may Allah be pleased with him) delivering a sermon, in such a state that he had inserted his fingers into his ears. He said: I myself heard from the Prophet Muhammad (peace and blessings be upon him) with these ears, that he said: Halal is clear and haram is clear, and between them are some doubtful matters. Whoever avoids the doubtful matters has protected his religion and honor. And whoever falls into the doubtful matters falls into haram, just like a shepherd who grazes his animals around a sanctuary; soon they will enter it. Beware! Every king has a sanctuary, and Allah’s sanctuary is His prohibited things. Beware! There is a piece of flesh in the body; if it is sound, the whole body is sound, and if it is corrupt, the whole body is corrupt. Listen! That is the heart.

Hazrat Ali (may Allah be pleased with him) said that one dirham of usury is, in the sight of Allah Almighty, worse than committing adultery thirty-six times.

It is narrated from Hazrat Abu Hurairah (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Usury has seventy sins, the least of which is that a man commits adultery (marries) with his own mother, and the greatest usury is that a man violates the honor of his brother.

Hazrat Aamir says that I read in the letter of the people of Najran, it was written in it: If you consume usury, there will be no peace between you and us, and the Holy Prophet (peace be upon him) did not make peace with those who consumed usury.