These sages wandered the earth seeing the entire universe, with all its gross and subtle objects, as a manifestation of the Supreme Lord and as nondifferent from the self.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
त एते भगवद्रूपं विश्वं सदसदात्मकम् । आत्मनोऽव्यतिरेकेण पश्यन्तो व्यचरन्महीम्
ta ete bhagavadrūpaṃ viśvaṃ sadasadātmakam | ātmano'vyatirekeṇa paśyanto vyacaranmahīm
SB 11.2.22