The Compendium of Kāśyapa 8.8.32

8.8.32

kṣaṇikasya praśāntasya nirūhamupalakṣayet
tribhiranvāsitasyātaḥ saptāhaḥ karmakālayoḥ

when he is rested and at ease, one should look to a decoction enema. / For one who has received three unctuous enemas, thereafter seven days [is the interval] in karma and kāla;