Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 2 · Signs, Planets, Birth
जातकम् १
द्वादशाब्दे शशिन्येवं सुतावपि विचिंतयेत् ॥ ६५ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 55, verse 65.
In the same way, with the Moon so placed, birth comes in twelve years. Think of the birth this way too. (Our text is unclear here: the word read as 'birth' may mean 'sons'.)
Simple meaning: With the Moon placed this way, the wait is twelve years.
पितुः परोक्षे जन्मस्यादिन्दौ लग्नमपश्यति ॥ ६८ ॥
When the Moon does not see the lagna, the child is born while the father is away.
मध्याद्भ्रष्टेर्के विदेशस्थे जननेनारिजन्म वै ।
The Sun past the 10th, Saturn in the lagna, or Mars in the 7th can mean the father is away.
चतुष्पदर्क्षगे भानौ शेषैर्बलयुतैः खगैः ।
The Sun in a four-footed sign with strong planets can give twins in one sac.