Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 6 · Calendar, Muhurta Elements
कालमानं मुहूर्ताङ्गानि च
तिथयस्तुप्रशस्तास्युर्मध्यमा प्रतिपत्सिता ।षष्ठ्यां तैलं तथाष्टम्यां मासं क्षौरं कलेस्तिथौ ॥ १४० ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 140.
... are good. The 1st of the bright fortnight is middling. Oil on the 6th, meat on the 8th and shaving on Kali's tithi (moon day) are to be avoided.
Simple meaning: Odd moon days are good and the bright 1st is middling. Avoid oil on the 6th, meat on the 8th.
पूर्णिमादर्शयोर्नारीसेवनं परिवर्जयेत् ।
Avoid being with a woman on full-moon and new-moon days. The rule continues in the next verse.
नवम्यां च न कुर्वीत कदाचिद्दंतधावनम् ।
Never clean the teeth with a twig on these days. Oil massage rules begin for bad yoga and sign-entry days.
अर्कभौमदिने षष्ठ्यां नाभ्यंगो वैधृतौ तथा ।
No oil massage on Sunday, Tuesday, the 6th or bad yoga days. Rules for amla bathing follow.