Mahārāja Ambarīṣa was a great devotee of the Supreme Personality of Godhead, Vāsudeva, and of the saintly persons who are the Lord’s devotees. Because of this devotion, he thought of the entire universe as being as insignificant as a piece of stone.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
वासुदेवे भगवति तद्भक्तेषु च साधुषु । प्राप्तो भावं परं विश्वं येनेदं लोष्टवत्स्मृतम्
vāsudeve bhagavati tadbhakteṣu ca sādhuṣu | prāpto bhāvaṃ paraṃ viśvaṃ yenedaṃ loṣṭavatsmṛtam
SB 9.4.17