Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 7 · Samskara Muhurtas
संस्कारमुहूर्ताः
त्रिषडायगतैः पापैः षडष्टांत्यविवर्जितैः ।शुभैः षष्ठाष्टलग्नांत्यवर्जितेन हिमांशुना ॥ ३७५ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 375.
Bad planets are in the 3rd, 6th and 11th. Good planets are out of the 6th, 8th and 12th. The Moon is out of the 6th, 8th, 12th and the lagna (rising sign).
Simple meaning: Bad planets in the 3rd, 6th or 11th. Good planets away from 6, 8, 12. Moon away from 6, 8, 12, 1.
स्वोच्चसंस्थोऽपि शीतांशुर्व्रतिनो यदि लग्नगः ।
Even an exalted Moon in the rising sign can make the boy poor and sickly.
स्फूर्जिते केंद्रगे भानौ व्रतिनां पितृनाशनम् ।
A fierce Sun in a corner house can harm the father. A fault-free rising sign is good.
विना वसंतऋतुना कृष्णपक्षे गलग्रहे ।
Do the rite in spring. Avoid the dark half, bad days, study holidays, bad half-days and the 6th.