Putting the one third in a building and spending from its returns

Q: Please advise us concerning my father's will. There is a copy attached. Is it permissible to buy an Ud-hiyah (sacrificial animal offered by non-pilgrims) instead of paying one third of the estate to charity? Is it permissible to make this one third (Waqf) and buy an Ud-hiyah from it every year until the money is consumed? Is it permissible to dedicate this Waqf for charitable purposes such as building or furnishing Masjids (mosques), and at the same time buy the Ud-hiyah? Please advise.

(Part No. 16; Page No. 361) A: The Ud-hiyah does not substitute paying one third of the estate to charity; this third should be invested as much as possible, an Ud-hiyah is to be bought from it every year, and the remaining part should be spent in forms of charity, such as contributing to constructing, repairing or furnishing a Masjid. If you can buy a building and spend its profit on the Ud-hiyah and the rest in different forms of charity, it will be better. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.