Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 6 · Calendar, Muhurta Elements
कालमानं मुहूर्ताङ्गानि च
व्यागघाते नव शूले तु पंच नाड्यो हि गर्हिताः ।अदितींदुमघाह्यश्वमूलमैत्रेज्यभानि च ॥ २१५ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 215.
In Vyaghata, nine ghatikas (24-minute unit) are condemned. In Shula, five. The stars are Punarvasu, Mrigashira, Magha, Ashlesha, Ashvini, Mula, Anuradha and Pushya. With Chitra, they are to be known as the head stars, in order.
Simple meaning: Vyaghata loses nine ghatikas and Shula five. Nine stars are named as head stars.
ज्ञेयानि सहचित्राणि मूर्द्धभानि यथाक्रमम् ।
Draw one line upward and thirteen lines across it.
तत्र खार्जूरिके चक्रे कथितं मूर्ध्नि भं न्यसेत् ।
Put the head star at the top of the date-palm figure. Check if the Sun and Moon share one line.
एकार्गलो दृष्टिपातश्चाभिजिद्वर्जितानि वै ।
Sun and Moon on one line of the figure is the single-bolt fault. Abhijit is left out.