Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 7 · Samskara Muhurtas
संस्कारमुहूर्ताः
शुभग्रहेषु धीधर्मकेंद्रेष्वरिभवे त्रिषु ।पापेषु सत्सु चंद्रेंत्यनिधनाद्यारिवर्जिते ॥ ३२४ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 324.
Good planets should be in the 5th, 9th and corner houses. Bad planets should be in the 6th, 11th and 3rd. The Moon must not be in the 12th, 8th, 1st or 6th house.
Simple meaning: Good planets in the 5th, 9th and corners, bad ones in the 3rd, 6th, 11th, and the Moon in a good house.
क्रूरग्रहाणामेकोपि लग्नादंत्यात्मजाष्टगः ।
A strong cruel planet in the 12th, 5th or 8th house can harm the mother or the child.
तस्मिञ्जन्ममुहूर्तेऽपि सूतकांतेपि वा शिशोः ।
The birth rite is done at the birth hour or when the birth impurity ends, after honouring the ancestors.
सूतकांते नामकर्म विधेयं तत्कुलोचितम् ।
Name the child when the impurity ends, in the way the family follows.