Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 8 · Marriage
विवाहः
चतुर्थमभिजिल्लग्नमुदयर्क्षाच्च सप्तमम् ।गोधूलिकं तदुभयं विवाहे पुत्रपौत्रदम् ॥ ५१२ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 512.
The 4th sign from the one rising at sunrise is the Abhijit lagna (rising sign). The 7th from it is the godhuli (cow-dust time at dusk) lagna. In a wedding, both give sons and grandsons.
Simple meaning: The noon lagna and the dusk lagna both give sons and grandsons in a wedding.
प्राच्यानां च कलिंगानां मुख्यं गोधूलिकं स्मृतम् ।
In the east and Kalinga, the dusk time is main. Abhijit is main everywhere and removes faults.
मध्यंदिनगते भानौ मुहूर्तोऽभिजिदाह्वयः ।
At midday the Abhijit time removes all faults, like Shiva overcoming Tripura.
पुत्रोद्वाहात्परं पुत्रीविवाहो न ऋतुत्रये ।
After a son's wedding, wait three seasons for a daughter's. Do not hold one good rite inside another.