Okla. Stat. tit. 12, § 12-1453: Forms and contents of writ

The writ is either alternative or peremptory. The alternative

writ must state, concisely, the fact showing the obligation of the

defendant to perform the act, and his omission to perform it, and

command him that immediately upon the receipt of the writ, or at

some other specified time, he do the act required to be performed or

show cause before the court whence the writ issued, at a specified

time and place, why he has not done so; and that he then and there

return the writ with his certificate of having done as he is

commanded. The peremptory writ must be in a similar form, except

that the words requiring the defendant to show cause why he has not

done as commanded, must be omitted.