Mahabharata 14.92.1

जनमेजय उवाच · janamejaya uvāca

पितामहस्य मे यज्ञे धर्मपुत्रस्य धीमतःयदाश्चर्यमभूत्किंचित्तद्भवान्वक्तुमर्हति

pitāmahasya me yajñe dharmaputrasya dhīmataḥyadāścaryamabhūtkiṃcittadbhavānvaktumarhati

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