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Islamic Finance SeriesArticle #18 of 178

The two roles of Islamic banks as Mudarib and Rab Al Maal

How Islamic banks simultaneously serve as Mudarib (fund manager) for depositors and Rab Al Maal (capital provider) for financing customers, and the historical context of this dual role.

ZA
Zain Arshad

Co-Founder & CTO, HalalWallet

Independently researched·No provider pays for placement·178 expert articles·About our editorial process

How Islamic banks simultaneously serve as Mudarib (fund manager) for depositors and Rab Al Maal (capital provider) for financing customers, and the historical context of this dual role.

In-Depth Analysis

How are customers' funds channeled through an Islamic bank's system starting from deployment to subsequent retrieval with profit? What happens in a situation where the Islamic bank incurs a loss in deploying depositors' funds as the Mudarib (fund manager)? Will the Islamic depositors lose their money in such a situation? Mudarabah was practiced even before the advent of Islam due to the location at the crossroads of ancient trade caravan routes, and because the city had emerged as a strong entrepôt trading center. Various credible persons carried goods and/or money for investors as the Mudarib and had to be accountable to them on returning to Makkah. Credibility in the community was key for anyone hoping to conduct Mudarabah transactions, and the most credible Mudarib in Makkah at the time was Prophet Muhammad who was entrusted by his future wife Khadija (may Allah bless her) with substantial capital to travel with caravans to far remote places and he proved the honesty and business acumen in the shape of consistently producing best results. In the contemporary world, Islamic banks have presented themselves in the most credible manner to not only source the funds but also to act as the investor at the same time. Islamic banks are ideally positioned to aggregate mass capital from small and large depositors, while being privy to lucrative investment opportunities where the capital can be safely and profitably deployed. The following adaptations allow an Islamic bank to practice a Mudarabah role today: (a) There are many investors and scores of entrepreneurs; (b) Being an intermediary, the Islamic bank enjoys high trust from investors who place large funds with the bank; (c) The projects/commercial transactions proposed by the entrepreneurs are financed by the Islamic bank rather than by the investors directly; (d) Investors and entrepreneurs do not have a direct relationship; (e) While investors deal with the bank purely on a Mudarabah basis, the bank is free to invest funds via any financing or investment option: Murabahah, Musharakah, Mudarabah, Istisna, Ijarah, Salam, Sukuk.

What You Need to Know

  • 1Islamic banks serve dual roles: Mudarib for depositors AND Rab Al Maal for financing customers
  • 2Mudarabah predates Islam — practiced in ancient Makkah trade caravan system
  • 3Prophet Muhammad served as Mudarib for Khadija — the most credible fund manager in Makkah
  • 4Islamic bank acts as intermediary between depositors and entrepreneurs
  • 5Bank can deploy funds across all Islamic financing structures: Murabahah, Musharakah, Ijarah, etc.
  • 6Investors and entrepreneurs have no direct relationship — bank intermediates

U.S. Market Relevance

The dual-role concept is how Islamic banking works in the US too. When a US Muslim deposits in an Islamic bank, the bank acts as Mudarib (manager) for them while simultaneously being Rab Al Maal (investor) when providing Murabahah car financing or Ijarah home financing to other customers.

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