Is it regarded as interest to determine a fixed period of time while lending money to a person?

They say it is regarded as interest to determine a fixed period of time while lending money to a person even if he pays the same amount?

Dear Brother / Sister,

It is not regarded as interest to determine a fixed period of time while lending money to a person.

"O ye who believe! When ye deal with each other, in transactions involving future obligations in a fixed period of time, reduce them to writing Let a scribe write down faithfully as between the parties: let not the scribe refuse to write: as Allah Has taught him, so let him write. Let him who incurs the liability dictate, but let him fear His Lord Allah, and not diminish aught of what he owes. If they party liable is mentally deficient, or weak, or unable Himself to dictate, Let his guardian dictate faithfully, and get two witnesses, out of your own men, and if there are not two men, then a man and two women, such as ye choose, for witnesses, so that if one of them errs, the other can remind her. The witnesses should not refuse when they are called on (For evidence). Disdain not to reduce to writing (your contract) for a future period, whether it be small or big: it is juster in the sight of Allah, More suitable as evidence, and more convenient to prevent doubts among yourselves... " (al-Baqara, 2/282)

Sufyan ath-Thawri reports the following statement of Ibn Abbas about the verse... "O ye who believe! When ye deal with each other, in transactions involving future obligations in a fixed period of time, reduce them to writing…": "This verse was sent down about selling things based on a fixed period of time."

Qatada reports the following from Ibn Abbas: He said, "I witness that Allah rendered salaf (selling things based on a fixed period of time) halal and allowed it." Then, he read the following verse: " O ye who believe! When ye deal with each other, in transactions involving future obligations in a fixed period of time, reduce them to writing..."

According to what is reported from Ibn Abbas through Sufyan Ibn Uyayna, bn Abbas stated the following:

When the Messenger of Allah (pbuh) came to Madinah,  the people of Madinah used to pay in advance the prices of fruits to be delivered within two to three years. The Messenger of Allah (pbuh) said,

"Let him who makes salaf transaction do it according to a specified measure, specified weight and a fixed specified period." (Bukhari, Salam, 7)

Ibn Jurayj says,

"Let him who borrows write it and who buys and sells get witnesses."

Qatada says,

"According to what was told to us, Abu Sulayman al-Mar'ashi was a friend of Ka'b's. Once, he asked his friends,

"Do you know the oppressed person whose prayer is not answered when he prays to his Lord?" They asked him,

"How is that?" He said,

"A person sells something based on a specified period of time but does not get witnesses and does not write it; when the time is due, the owner of the goods denies it; he prays to his Lord but his prayer is not accepted because he has disobeyed his Lord."

"Let a scribe write down faithfully as between the parties: let not the scribe refuse to write: as Allah Has taught him, so let him write."

The attitudes and duties of those who will work regarding the issue are determined by the divine decree.

Allah Almighty states the following:

"Let him who incurs the liability dictate, but let him fear His Lord Allah, and not diminish aught of what he owes. If they party liable is mentally deficient, or weak, or unable Himself to dictate, Let his guardian dictate faithfully."

The order of Allah "…and get two witnesses, out of your own men" orders us to get witnesses along with writing to make it stronger: "…and if there are not two men, then a man and two women." This can be about goods and the things that goods are meant (contracts).

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