Mahabharata 12.30.33
ततः कदाचिद्भगवान्पर्वतोऽनुससार हवनं विरहितं किंचित्तत्रापश्यत्स नारदम्
tataḥ kadācidbhagavānparvato'nusasāra havanaṃ virahitaṃ kiṃcittatrāpaśyatsa nāradam
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book