MuU 2.2.11
ब्रह्मैवेदममृतं पुरस्ताद् ब्रह्म पश्चाद् ब्रह्म दक्षिणतश्चोत्तरेण । अधश्चोर्ध्वं च प्रसृतं ब्रह्मैवेदं विश्वमिदं वरिष्ठम्
brahmaivedamamṛtaṃ purastād brahma paścād brahma dakṣiṇataścottareṇa | adhaścordhvaṃ ca prasṛtaṃ brahmaivedaṃ viśvamidaṃ variṣṭham
Sanskrit for this text is pending; the English follows the translator's numbering.
That immortal Brahman is before, that Brahman is behind, that Brahman is right and left. It has gone forth below and above; Brahman alone is all this, it is the best.
Translated by F. Max Müller