Shiva Purana
कन्यकादिक्रमवशात्प्राणायामनिरोधनम् ॥ तच्चतुर्धोपदिष्टं स्यान्मात्रागुणविभागतः ॥ २७ ॥
Prāṇāyāma is one of the four varieties in view of the time-units, Kanyaka etc.
english translation
kanyakAdikramavazAtprANAyAmanirodhanam ॥ taccaturdhopadiSTaM syAnmAtrAguNavibhAgataH ॥ 27 ॥
hk transliteration by Sanscript