Udyoga-parva Adhyāya 69: Dhṛtarāṣṭra’s Reverential Address to Sañjaya on Vāsudeva
अधो न क्षीयते जातु यस्मात् तस्मादधोक्षज: । नराणामयनाच्चापि ततो नारायण: स्मृत:,श्रीकृष्ण कभी नीचे गिरकर क्षीण नहीं होते, अतः (“अधो न क्षीयते जातु'--इस व्युत्पत्तिके अनुसार) “अधोक्षज' कहलाते हैं। वे नरों (जीवात्माओं)-के अयन (आश्रय) हैं, इसलिये उन्हें “नारायण” भी कहते हैं
Sañjaya said: Krishna never falls downward and is never diminished; therefore, by the etymology “adhō na kṣīyate jātu,” he is called Adhokṣaja. And because he is the āyana—the refuge—of the nara (living souls), he is also remembered as Nārāyaṇa.
संजय उवाच