Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 8 · Marriage
विवाहः
पूर्णानंदाख्ययोस्तिथ्योः संधिर्नाडीद्वयं यदा ।गंडांतं मृत्युदं जन्मयात्रोद्वाहव्रतादिषु ॥ ४४७ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 447.
Take the tithis (moon days) called Purna and Nanda. Their junction, for two ghatikas (24-minute unit), is gandanta (the edge-point between signs). It may bring a risk to life in birth, travel, marriage, vows and the like.
Simple meaning: The meeting of Purna and Nanda moon days, two ghatikas long, is a risky junction for birth and marriage.
कुलीरसिंहयोः कीटचापयोर्मीनमेषयोः ।
The gap between those pairs of signs is a risky junction for half a ghatika.
सार्पैन्द्रपौष्णभेष्वंत्यषोडशेशा भसंधयः ।
The ends of Ashlesha, Jyeshtha and Revati and the starts of Magha, Mula and Ashvini are danger junctions.
उग्रं च संधित्रितयं गंडातं त्रिविधं महत् ।
Gandanta has three kinds. Two bad planets facing the lagna make a worse fault.