Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 6 · Calendar, Muhurta Elements
कालमानं मुहूर्ताङ्गानि च
एकार्गलो दृष्टिपातश्चाभिजिद्वर्जितानि वै ।विनाडीभिर्द्वादशभी रहितं घटिकाद्वयम् ॥ २१८ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 218.
That is ekargala (single-bolt fault), also called drishtipata (facing look). The stars are placed without Abhijit. Two ghatikas (24-minute unit), less twelve vinadis (24-second unit). (Our text is unclear here: what this span of time measures.)
Simple meaning: Sun and Moon on one line of the figure is the single-bolt fault. Abhijit is left out.
योगं प्रकरणं योगाः क्रमात्तु सप्तविंशतिः ।
There are 27 yogas in order. Then the karana lords begin: Indra, Prajapati, Mitra and others.
कीनाशः कलिरुद्राख्यो तिथ्यर्द्धेशास्त्वहिर्मरुत् ।
Eleven gods rule the eleven karanas. The first six karanas, Bava to Vanija, are good.
परीता विपरीता वा विष्टिर्नेष्टा तु मंगले ।
Vishti is not wanted in a good act. Its parts are the mouth, throat and chest.