The Dhammapada
Chapter XXIV
Thirst
Verse CCCXLIV



He who having got rid of the forest (of lust) (i.e.
after having reached Nirvâna) gives himself over
to forest-life (i.e. to lust), and who, when free
from the forest (i.e. from lust), runs to the forest
(i.e. to lust), look at that man! though free, he
runs into bondage.