Vyasa said When the householder sees his body wrinkled and hair white on his head, and children of his children, he should then retire into the forest.
व्यास उवाच गृहस्थस्तु यदा पश्येद् वलीपलितमात्मनः। अपत्यस्यैव चापत्यं वनमेव तदा श्रयेत्॥