Charak Samhita
ऊर्ध्वगं कफसंसृष्टमधोगं मारुतानुगम्। द्विमार्गं कफवाताभ्यामुभाभ्यामनुबध्यते ॥२४॥
The upward movement in raktapitta is associated with kapha, the downward one with vata and that from both the passages is associated with both kapha and vata.
english translation
UrdhvagaM kaphasaMsRSTamadhogaM mArutAnugam। dvimArgaM kaphavAtAbhyAmubhAbhyAmanubadhyate ॥24॥
hk transliteration by Sanscript