देवराद् वा सपिण्डाद् वा स्त्रिया सम्यक्नियुक्तया । प्रजेप्सिताऽऽधिगन्तव्या सन्तानस्य परिक्षये ॥ ५९ ॥
On failure of issue (by her husband) a woman who has been authorised, may obtain, (in the) proper (manner prescribed), the desired offspring by (cohabitation with) a brother-in-law or (with some other) Sapinda (of the husband).