Mulkning ko‘payishi uni hosil qilish uchun qo‘llaniladigan uslublar va vositalarga bog‘liqdir. Biroq bu mulkka egalikning ko‘payishi esa shaxs bu egalikni qanday yo‘l bilan oshirishiga bog‘liqdir. Iqtisodiy tizimning mulkning ko‘payishi bilan hech qanday aloqasi yo‘q; aksincha, tizim egalikning ko‘payishi bilan bog‘liqdir. Islom mulkning ko‘payishiga aralashmagan va insonni uni ko‘paytirish uchun o‘zi munosib deb bilgan uslub va vositalarga ko‘ra ish tutishga qoldirgan. Ammo Islom mulkka egalikning ko‘payishiga aralashadi va uning qoidalarini bayon qilgan. Egalikning ko‘payishi Shariat qo‘ygan chegaralar bilan cheklangan bo‘lib, ulardan oshib o‘tish mumkin emas. Shariat egalikni qanday yo‘l bilan oshirish mumkinligini belgilovchi umumiy qoidalarni qo‘ygan, ularning tafsilotlarini esa Alloh (SWT) mujtahid olimlarga, ularning voqealarni tushunishlariga asoslanib, ushbu qoidalardan chiqarib olish uchun qoldirgan. Biroq Shariat ayrim yo‘llarni man qilgan. Shunday qilib, U egalikni oshirish mumkin bo‘lgan bitimlar va shartnomalarni, hamda shaxsni egalikni oshirishdan man qilingan bitimlarni bayon qilgan.

The increase of property is related to the styles and means used to produce it. However, increasing ownership of this property is related to the manner by which the person increases this ownership. The economic system has nothing to do with the increase of property; rather the system is involved with the increase of ownership. Islam did not interfere with the increase of property, and it left man to increase property by the styles and means, which He considers suitable for doing so. Islam does however interfere with the increase of ownership of property and has explained its rules. The increase of ownership is restricted by the limits given by the Lawgiver, which may not be transgressed. The Lawgiver has placed general guidelines to determine the manner by which ownership may be increased, and He (pbuh) left the scholars (Mujtahideen) to deduce the details of these guidelines from them based on their understanding of the incidents. However, the Lawgiver did prevent certain manners. Thus He explained the transactions and contracts with which ownership may be increased and those with which the person is prevented from increasing the ownership.