Agni Purana (Jyotisha Selections) · by Vyasa
Chapter 1 · Muhurta: Marriage, Home, Farming
ज्योतिःशास्त्रम्
कर्णवेधो बुधे जीवे पुष्ये श्रवणचित्रयोः ।पञ्चमेऽब्दे चाध्ययनं षष्ठीप्रतिपदं त्यजेत् ॥ २५ ॥
In the full Agni Purana this is chapter 121, verse 25.
Ear-piercing is for Wednesday and Thursday, and for Pushya, Shravana and Chitra. Study begins in the fifth year. Avoid the 6th and the 1st tithi (moon day).
Simple meaning: Ear-piercing and the start of study have their times. Avoid the 6th and 1st moon days.
रिक्तां पञ्चदशीं भौमं प्रार्च्य वाणीं हरिं श्रियम् ।
Worship first, and tie the girdle in the six months from Magha.
चूडाकरणमाद्यं च श्रावणादौ न शस्यते ।
The first haircut is not good from Shravana on, or when Jupiter or Venus is set.
उपनीतस्य विप्रस्य मृत्युं जाड्यं विनिर्दिशेत् ।
A thread ceremony done in the bad times may bring death or dullness.