Mahabharata 3.177.29

प्राङ्नाभिवर्धनात्पुंसो जातकर्म विधीयतेतत्रास्य माता सावित्री पिता त्वाचार्य उच्यते

prāṅnābhivardhanātpuṃso jātakarma vidhīyatetatrāsya mātā sāvitrī pitā tvācārya ucyate

Our plain-language meaning of this verse is waiting for scholar review.