Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 3 · Dashas, Yogas, Placements
जातकम् २
लग्नाच्चतुर्भुगैर्यूपः शरस्तूर्याच्चतुर्भुगैः ।द्यूनाद्वेदक्षगैः शक्तिर्दऽखादिचतुर्भगैः ॥ १८९ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 55, verse 189.
With four houses from the lagna (rising sign), the combination is Yupa. With four from the 4th, it is Shara. From the 7th, with four, it is Shakti. From the 10th, with four, it is Danda.
Simple meaning: Planets in four houses in a row from the 1st, 4th, 7th or 10th make Yupa, Shara, Shakti or Danda.
लग्नात्क्रमात्सप्तभगैर्नौकाकूटस्तु नुर्यतः ।
Planets in seven houses in a row make Nauka, Koota, Chhatra, Chapa or Ardhachandra, by the starting house.
वीणादामपाशकेदारभूशूलयुगगोलकाः ।
Seven combinations are named. All planets in moving signs make Rajju.
स्थिरस्थैर्मुसलं नाम द्विशरीणतैर्नलः ।
Planets in fixed, dual or corner places make Musala, Nala, Mala or Sarpa.