Śaṅkaraon Brahma Sūtra 3.4.7

‘ Performing works here (i. e. in this life) let a man wish to live a hundred years ; thus work will not cling to thee, man ; there is no other way than that’ (Isa. Up. 2) ; ‘The Agnihotra is a sattra lasting up to old age and death ; for through old age one is freed from it or through death’ (Sat. Bra. XII, 4, 1, 1) ; from such definite rules also it follows that knowledge is merely supplementary to works. Against all these objections the Siitrakara upholds his view in the following Sfitra.