Mahabharata 13.107.115
सौहित्यं च न कर्तव्यं रात्रौ नैव समाचरेत्द्विजच्छेदं न कुर्वीत भुक्त्वा न च समाचरेत्
sauhityaṃ ca na kartavyaṃ rātrau naiva samācaretdvijacchedaṃ na kurvīta bhuktvā na ca samācaret
Our plain-language meaning of this verse is waiting for scholar review.
