Anandakanda 1.14.45

1.14.45

saṃvatsaropayogena jīveccandrārkatārakam /
himaśītavasanteṣu yojyaṃ viṣarasāyanam //

by use for a year, one lives as long as the moon, sun, and stars.
The rejuvenation therapy with poison should be applied in early winter, late winter, and spring;