17.11 Sah, that; yajnah, sacrifice; vidhi-drstah, which is in accordance with the injunctions, which is known through scriptural unjunctions; (and) yah, which; is ijyate, performed; a-phala-akanksibhih, by persons who do not hanker after results; manah samadhaya, with the mental conviction; iti, that; yastavyam, eva, it is surely obligatory, their duty is to accomplish the sacrifice just as it should be-with the firm idea, 'I have no human goal to achieve through this'-; is said to be a sacrifice which is sattvikah, done through sattva.