Ra's al-mal

capital; principal amount invested; capital invested in Mudarabah Musharkah.

Rabb al-ardh

owner of land, owner of the land in Musaqah/Musaqat and Muzara’ah contracts.

Rabb al-maal

investor; owner of capital; a person who invests in Mudarabah / Musharkah. See also sahib al-mal.

Radd bi-al-'ayb

return of goods after a sale due to defects in the goods.

Raghabah

Property, which belongs to all people. Neither state nor individuals can prevent others from its lawful use.

Rahn

Pledge or mortgage.

Riba

Riba literally means increase, addition, expansion or growth. It is, however, not every increase, or growth, which has been prohibited by Islam. In the Shariah, Riba technically refers to the premium that must be paid without any consideration. According to the jurists of Islam this definition covers the two types of Riba, namely Riba Al Fadhl and Riba Al Naseah.

Example 1of Riba: If A sells 100 $ to B with 110 $. The premium of 10 $ is without any consideration or compensation. Therefore this amount of 10 $ will be Riba.

Example 2 of Riba: If A lends 100 $ to B (a borrower) with a condition that B shall return him 110$ after one month. In this case the premium paid that must be paid by the borrower to the lender along with the price is Riba. Because the premium of 10 $ is without any consideration.

Riba aI-Fadl

An extension of Riba to trade, because while trade is allowed, not everything is permitted in trade. The prohibition of Ribaal-fadl closes all back doors to Riba through trade. unlawful excess in the exchange of two counter-values where the excess is measurable through weight or measure. According to some Ahadith (Sayings of the Holy Prophet) if six things i.e. gold, silver, wheat, barley, dates and salt are exchanged against themselves, they should be spot and be equal and been specified. If these conditions are not found, this transaction will become Riba Al Fadhl.

Riba al' Nasiah

Literally means increase or addition of debt and it refers to the premium that must be paid by the borrower to the lender along with the principal amount as a condition for the loan or an extension in its maturity." It is thus equivalent to interest. the addition of the premium which is paid to the lender in return for his waiting as a condition for the loan and is technically the same as interest.

Raibahh

Is from rayb which literally means "doubt or suspicion and refers to the income which has the semblance of Riba or which raises doubts in the mind about its rightfulness. It covers all income derived from injustice to or exploitation of, others.

Rikaz

Ancient wealth found hurried in land whose

Rukn

element; part of an act without which the act is not complete or valid; essential ingredient or element of a contract; singular of Arkan.