MUṆḌAKA UPANISHAD · 3.2.8

यथा नद्यः स्यन्दमानाः समुद्रेऽस्तं गच्छन्ति नामरूपे विहाय ।
तथा विद्वान् नामरूपाद्विमुक्तः
परात्परं पुरुषमुपैति दिव्यम् ॥ ८॥

yathā nadyaḥ syandamānāḥ samudre’staṃ gacchanti nāmarūpe vihāya ।
tathā vidvān nāmarūpādvimuktaḥ
parātparaṃ puruṣamupaiti divyam ॥ 8॥

As rivers in their flowing reach their home in the ocean and cast off their names and forms, even so one who knows is delivered from name and form and reaches the Supreme beyond the Most High, even the Divine Person.