The Compendium of Kāśyapa 8.1.37

8.1.37

ahorātrāccyutaḥ sthānāddoṣaḥ kaṇṭhe'vatiṣṭhate
tataḥ punarahorātrādurasi pratipadyate

Departed from its site after a day and night, the humour abides in the throat; / thence, after another day and night, it reaches the chest;