Hayanaratna · by Balabhadra
Chapter 4 · The Sahamas
सहमाध्यायः
तदात्रोदयभोग्यांशाः पात्यास्स्युर्भागपिण्डतः ॥त्रिंशत्कृत्वाधनस्थानादंशान्प्रत्येकशोधनात् ॥
... then the rising sign's degrees still to travel are to be taken away from the total of degrees. Then, by taking away thirty degrees at a time from the 2nd house...
Simple meaning: If the lagna is inside, subtract its degrees left. Then subtract 30 per sign from the 2nd house.
विश्राम्यति हि तत्रर्क्षे स्यात्पुण्यसहमं विधोः ॥
Where the count stops is the Punya point. By night, use the Moon's degrees left and the Sun's degrees gone; the rest is the same.
वामनेनापि पितृसहमानयने स्पष्टमभिहितञ्च ॥
Vamana's way for the father's point by day: Sun's degrees left, Saturn's degrees gone and the signs between.
एकीकृत्य ततः प्राग्वत् कृत्वा लग्नविचारणम् ॥
After joining, check the lagna as before. By night, start with Saturn's degrees left.