Brihat Parashara Hora Shastra
द्विपंचरन्ध्रलाभानां ज्ञेयं पणफराभिधम्। त्रिषष्ठभाग्यरिष्फानामापोक्लिममिति द्विज॥ ३४॥
The Kendras are specially known, as Lagn (the ascendent), Bandhu Bhava, Yuvati Bhava (the descendant) and Karm Bhava (mid-heaven). Dhan, Putr, Randhr and Labh Bhava are Panapharas (succedents), while Sahaj, Ari, Dharm and Vyaya Bhava are called Apoklimas (cadents).
english translation
dvipaMcarandhralAbhAnAM jJeyaM paNapharAbhidham। triSaSThabhAgyariSphAnAmApoklimamiti dvija॥ 34॥
hk transliteration by Sanscript