The Vedanta Sutras of Badarayana, Commentary by Sankara (SBE38), tr. by George Thibaut  at sacred-texts.com
48. On account of his being all, however, there is winding up with the householder.
The word 'however' is meant to lay stress on the householder's being everything. For the performance of many works belonging to his own âsrama, such as sacrifices and the like, which involve not a little trouble, is enjoined on him by scripture; and at the same time the duties of the other âsramas--such as tenderness for all living creatures, restraint of the senses and so on--are incumbent on him also as far as circumstances allow. There is therefore nothing contradictory
in the Khândogya winding up with the householder.