CHĀNDOGYA UPANISHAD · 8.7.2

तद् धोभये देवासुरा अनुबुबुधिरे ।
ते होचुर् हन्त तम् आत्मआनम् अन्वेच्छामो यम् आत्मानम् अन्विष्य सर्वांश् च लोकान् आप्नोति सर्वांश् च कामान् इति ।
इन्द्रो हैव देवानाम् अभिप्रवव्राज विरोचनो ऽसुराणाम् ।
तौ हासंविदानाव् एव समित्पाणी प्रजापतिसकाशम् आजग्मतुः ॥

tad dhobhaye devāsurā anububudhire ।
te hocur hanta tam ātmaānam anvecchāmo yam ātmānam anviṣya sarvāṃś ca lokān āpnoti sarvāṃś ca kāmān iti ।
indro haiva devānām abhipravavrāja virocano ’surāṇām ।
tau hāsaṃvidānāv eva samitpāṇī prajāpatisakāśam ājagmatuḥ ॥

The Devas (gods) and Asuras (demons) both heard these words, and said: 'Well, let us search for that Self by which, if one has searched it out, all worlds and all desires are obtained.' Thus saying Indra went from the Devas, Virokana from the Asuras, and both, without having communicated with each other, approached Pragâpati, holding fuel in their hands, as is the custom for pupils approaching their master.

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