CHĀNDOGYA UPANISHAD · 4.5.3

स य एतम् एवं विद्वांश् चतुष्कलं पादं ब्रह्मणः प्रकाशवान् इत्य् उपास्ते प्रकाशवान् अस्मिंल् लोके भवति ।
प्रकाशवतो ह लोकाञ् जयति य एतम् एवं विद्वांश् चतुष्कलं पादं ब्रह्मणः प्रकाशवान् इत्य् उपास्ते ॥

sa ya etam evaṃ vidvāṃś catuṣkalaṃ pādaṃ brahmaṇaḥ prakāśavān ity upāste prakāśavān asmiṃl loke bhavati ।
prakāśavato ha lokāñ jayati ya etam evaṃ vidvāṃś catuṣkalaṃ pādaṃ brahmaṇaḥ prakāśavān ity upāste ॥

'He who knows this and meditates on the foot of Brahman, consisting of four quarters, by the name of Prakâsavat, becomes endowed with splendour in this world. He conquers the resplendent worlds, whoever knows this and meditates on the foot of Brahman, consisting of the four quarters, by the name of Prakâsavat.

F. Max Müller · The Upanishads, Sacred Books of the East 1 (1879)