Bhagavad Gita 18.74
सञ्जय उवाच। इत्यहं वासुदेवस्य पार्थस्य च महात्मनः। संवादमिममश्रौषमद्भुतं रोमहर्षणम्।।18.74।।
sañjaya uvāca| ityahaṃ vāsudevasya pārthasya ca mahātmanaḥ| saṃvādamimamaśrauṣamadbhutaṃ romaharṣaṇam||18.74||
sanjaya uvaca ityaham vasudevasya parthasya ca mahatmanah samvadamimamashraushamadbhutam romaharshanam18.74
Meaning
Sanjaya concludes: Thus I have heard this wonderful dialogue between Krishna and the great-souled Arjuna, which causes my hair to stand on end.
संजय ने कहा — इस प्रकार मैंने भगवान् वासुदेव और महात्मा अर्जुन के इस अद्भुत और रोमाञ्चक संवाद को सुना।
This is verse 74 of 78 in Chapter 18 (Moksha Sannyasa Yoga) of the Bhagavad Gita.