I observe among the Hindus and Christians that even their women bequeath vast properties and wealth for this purpose. No such examples exist among the Muslims of this age.
The greatest difficulty that confronts us today is that we require financial support in order to propagate Islam. You ought to bear well in mind that ultimately, God Almighty has willed to establish this community with His own hand and He Himself is the Supporter and Helper of this community. However, since God desires to make His servants worthy of spiritual reward, the Prophets are compelled to make an appeal for financial support. The Messenger of Allah, peace and blessings of Allah be upon him, called for assistance, and in the same manner – upon the precepts of prophethood – I too apprise my friends of the community’s needs. In any case, I would like to reiterate that even if we do collect an amount for the propagation of Islam, it is obvious that we cannot match the amount that is at the disposal of the Christian clergy. And even if we do, it is still my faith that victory is only given to those with whom God is pleased.
(Hazrat Mirza Ghulam Ahmad a.s, Malfuzat, Vol. 1, pp 238-239)