That proves that the alif laam on the words Trade and Interest are general and include all forms and types. Then only will trade and interest be termed as opposites i.e. all types of trade are permissible and all types of interest are prohibited. Who believe devour not usury doubling and quadripling'. He mentions that the words 'quadripling' are linked with the command 'Devour not'. He has stated that only compound Interest is prohibited not simple interest.
Interest is of two types - one permissible the other unlawful.
This division is totally against the terminology of the Noble Qur'an. All the commentators of the Noble Qur'an, the narrators of Hadith and the Jurists have unanimously declared interest as Haraam, and have based their claims on relevant facts. They say that the words 'doubling and quadripling' are merely emphasising this system of interest. The prohibition is alredy derived from the words 'devour not'. This verse prohibits the remains of interest.