We find the following text in 'Parasara Madhava ' which is believed to have been written by Madhavacharya, the prime minister of the Vijayanagara kings in or about the year 1350: Dattavyatiriktanang gounputrarnang rikthbhaktava Pratipadakani wakyani yugantaravikshyarni kalou yuge tekshang putratwen parigrahrnasya smrityantare nikshidhatwata " Dattourasetrekshantu puthrathwen parigrahah devarern sutotpattih wanaprashthashramagrahah kalou yugotwimana dharmana varjyanahurmanikshinah ithee (The texts establishing the right to inherit of the subsidiary sons other than the Dattaka or the adopted son were applicable in past ages (and have no force now) because in another Smriti their being taken as sons is prohibited in the Kali Yuga: 'The acceptance as sons of other than the Dattaka and Aurasa sons, ' the procreation of a son by Niyoga by the husband 's younger brother and adopting the life of the Vanaprastha in old age are prohibited by the wise.) (Vide Ghose on 'Hindu Law ' Vol. II at p. 626).