Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 7 · Samskara Muhurtas
संस्कारमुहूर्ताः
जीवे शुक्रे च भूपुत्रे चंद्रताराबलान्विते ।मौंजीबंधोक्ततिथिषु कुजवर्जितवासरे ॥ ३८१ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 381.
...that is, Jupiter, Venus and Mars. The Moon's strength and tara (star count from the birth nakshatra) strength are present. Use the tithis (moon days) told for the maunjibandha (thread ceremony). Use any weekday but Tuesday.
Simple meaning: Jupiter, Venus and Mars not set, Moon and star strength, thread-rite days, and any day but Tuesday.
नचेन्नवांशके कर्तुरष्टमोदयवर्जिते ।
Avoid a rising sign 8th from the birth sign. Keep the 8th clean. Keep the Moon out of 6, 8, 12.
आयामार्द्धाग्रविस्तारप्रमाणेनैवच्छेदयत् ।
Measure and cut the blade by its parts. A Dhvaja count may help defeat enemies.
धूम्राये मरणं सिंहे जयः शुनि च रोगिता ।
Dhuma may risk life, Simha bring victory, Shva sickness, Vrisha wealth and the ass sorrow.