Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 8 · Marriage
विवाहः
लग्नात्पंचमगः पापः शत्रुदृष्टश्च नीचगः ।मृतपुत्राथ वा कन्या कुलटा वा न संशयः ॥ ४०० ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 400.
Say a bad planet is in the 5th from the lagna (rising sign). An enemy looks at it, and it is in its nicha (low point). Then the girl may face grief over her children, or her conduct in marriage may waver. So the text says.
Simple meaning: A weak, afflicted bad planet in the 5th may bring the bride grief over children or unsteady conduct.
तृतीयपंचसप्तायकर्मगो वा निशाकरः ।
The Moon in the 3rd, 5th, 7th, 10th or 11th, seen by Jupiter, joins the couple.
तुलागोकर्कटा लग्नसंस्थाः शुक्रेंदुसंयुताः ।
Libra, Taurus or Cancer rising with Venus and the Moon helping brings a bride.
स्त्रीद्रेष्काणः स्त्रीनवांशे युग्मलग्नं समागतम् ।
An even-sign lagna in female parts, seen by the Moon and Venus, brings a bride.