Hayanaratna · by Balabhadra
Chapter 6 · The Twelve Houses
द्वादशभावविचाराध्यायः
लग्नात्केन्द्रत्रिकोणस्थौ विषमांशगतावुभौ ॥पुत्रजन्मप्रदावेतौ समांशे स्त्रीजनिप्रदौ ॥
Both may stand in a kendra (corner house) or trikona (luck house) from the lagna (rising sign), in an odd navamsha (one-ninth part of a sign). They then give the birth of a son. In an even navamsha they give the birth of a girl.
Simple meaning: Both in a corner or luck house from the lagna: odd navamsha gives a son, even navamsha a girl.
नीचास्तारिगतावेतौ यदि वक्रग्रहान्वितौ ॥
If both are low, set, in an enemy's sign, or with retrograde planets, the combination is spoiled.
अत्र संतानयोगकर्तारो यदा विषमर्क्षे विषमनवांशे वा स्थिताः पुत्रजन्मकराः समभे समनवांशे च कन्याजन्मकरास्स्युरिति विशेषः ॥
Child-giving planets in odd signs give a son. In even signs they give a daughter.
जीर्णताजिके ॥
5th lord in the lagna and lagna lord in the 5th: a son is foretold for the year.