In almost four decades, Malaysia has gone through a remarkable journey in developing key institutional, legal, and Shari’ah systems to accommodate and facilitate the growth of Islamic banking, which is one of its key economic sectors. As it is ‘Islamic’ banking, its operations and activities must be in line with the principles of Islamic commercial law (muamalat). Adherence to Islamic principles is what distinguishes it from conventional banking. It means that all of its transactions, contracts, and related activities must be free from the elements of usury (riba), gambling (maysir), and excessive uncertainty (gharar). The dealings must also be fair and just to the contractual parties. They must not bear any detrimental impact on society and the environment in line with the objectives of Islamic law (maqasid Shari’ah). Meanwhile, endowment (wakaf) and tithe (zakat) are two other significant social sectors that have also played an important role in aiding the government in scaling down poverty in Malaysia. They, too, have gone through institutional and legal reformation, though not at a scale as experienced by the Islamic banking sector.