Pahlavi Texts, Part II (SBE18), E.W. West, tr. , at sacred-texts.com
1. As to the fifty-eighth question and reply, that which you ask is thus: For how much property is it then necessary to appoint an adopted son?
2. The reply is this, that when the property which has remained his for whom it is necessary to appoint an adopted son is as much as sixty stîrs 2 of income, it is then indispensable to appoint an adopted son for him. 3. Even when it is less they should recognise him whose adoption is needful, and who conducts an adopted son's duty; and, similarly, an adoption is to be appointed for him, though it may not come as a possession unto him who is fittest for adoption.
192:2 About 84 rûpîs (see Chap. LVI, 2).