Bait ul-Mal 是负责所有收入（岁入）或支出的机构，穆斯林有权获得这些收入或享有相应的支出。因此，凡是穆斯林有权获得、且所有者未被指定的财产，都归入 Bait ul-Mal，即便其所有者在类别上已被指定。财产一旦被收取，无论该财产实际是否进入其掌握之中，都会因收取而计入 Bait ul-Mal 的权利之中，因为 Bait ul-Mal 是一个机构，而不仅仅是一个地点。凡是应当用于穆斯林利益的权利，都是 Bait ul-Mal 的权利。如果它被用于其指定的领域，那么无论它是否已离开其掌控，都会计入 Bait ul-Mal 的支出。因为凡是到达穆斯林统治者手中，或由他们支出的财产，都适用 Bait ul-Mal 的规定，无论其属于收入还是支出。

The Bait ul-Mal is the authority responsible for every income (revenue) or expense, which the Muslims are entitled to. Therefore, every property (Mal) that the Muslims are entitled to, and whose owner is not assigned, is assigned to the Bait ul-Mal, even if its owner as a category was assigned. Once the property was received, then by its receipt it is added to the rights of the Bait ul-Mal, whether the property actually entered into its possession or not, because the Bait ul- Mal is an authority and not just a place. And every right, which is due to be spent on the Muslims interests, is a right upon the Bait ul-Mal. If it was spent in its specified area then it becomes added to the expenses of the Bait ul-Mal, whether it left its hold or not. Because that which reached the governors of Muslims, or is spent by them, then the law of the Bait ul- Mal applies to it, whether as revenue or expenses.