The Compendium of Caraka 6.30.338

6.30.338

uktānuktacikitsā ca samyagyogastathaiva ca/
&deśādiguṇaśaṃsā ca kālaḥ ṣaḍvidha eva ca//

and stated and unstated treatments, proper formulation likewise, / praise of qualities of place and the like, and the sixfold time;