Following the demise of Almarhum Sultan Idris I in 1916, certain property forming part of Almarhum’s estate was vested in the Trustees for special religious and charitable purposes. This was granted under an enactment called The Sultan Idris Religious and Charitable Trust Enactment, 1917 (Enactment No.3 of 1917, as amended by Pk.3 of 1918).
The 1917 enactment states that the Trustees are to devote the income and profits arising from, the said lands and all other moneys coming to their hands as Trustees of the Sultan Idris Religious and Charitable Trust to a range of purposes, which included maintenance of the Masjid Rizwaniah (a grand total of not exceeding $2000 was allocated for maintenance and salaries), Makam Rahmatullah (makam of Almarhum Sultan Idris I), Madrasah Idrisiah (a total not exceeding $4260 was allocated, and to include the salaries of the faculty). It was also the duty of the Trustees to ensure that religious functions are regularly performed at the Masjid Rizwaniah, regular reading of the Al-Quran at the makam and the teaching of Islamic knowledge to be ongoing at the madrasah. Almarhum Sultan Sir Abdul Jalil has ordered that income from sixteen lots of property in the town of Kuala Kangsar to be used to fund these objectives.
The full text of the 1917 Enactment describing the objects of the Trust and the duties of the Trustees is available here in PDF format.
1. Wikipedia: Madrasah Idrisiah