The relevant part of the deed, which declared that the ultimate benefit in the case of complete intestacy of the descendants of the settlor was reserved for poor Musalmans of Sunni community deserving help, read thus: "After payment of all necessary outgoings such as establishment charges, collections charges, revenue taxes, costs of repairs, law charges and other expenses for the upkeep and management of the said wakf property, the mutawalli or mutawallis shall apply the net income of the said wakf property as follows, viz.: (a) in payment to me during the term of my life of one fifth of the said net income by monthly instalments; (b) in payment to each of my sons during the respective terms of their lives one sixth of the said net income by monthly instalments; (c) in payment to my wife, Aisha Bibi, during the term of her life one tenth of the said net income by monthly instalments.