The executor or administrator, as soon as he has sufficient funds in his hands, must pay the funeral expenses, and the expenses of the last sickness, and the allowance made to the family of the decedent. He may retain in his hands the necessary expenses of administration, but he is not obliged to pay any other debt or any legacy until, as prescribed in this chapter, the payment has been ordered by the court.
Okla. Stat. tit. 58, § 594