। ॥ १९९ ॥
In plain words
The day this man turns away from everything, wanting only mokṣa — that very day, sannyāsa is laid down for him: he knows, and he wants release. So by that śruti itself, and by the higher one too, the clear-minded should settle it inwardly and stop debating: this renunciation stands on scripture.
Close to the Sanskrit
On whichever day this one becomes dispassionate through the desire for liberation, on that very day renunciation is enjoined for the knowing seeker of liberation. Therefore, by that very śruti and by the higher one as well, this is to be firmly settled in the mind by the clear-minded: "it rests on scriptural authority."