KAIVALYA UPANISHAD · 23

न भूमिरापो न च वह्निरस्ति न चानिलो मेऽस्ति न चाम्बरं च ।
एवं विदित्वा परमात्मरूपं गुहाशयं निष्कलमद्वितीयम् ॥ २३
समस्तसाक्षिं सदसद्विहीनं प्रयाति शुद्धं परमात्मरूपम् ॥

na bhūmirāpo na ca vahnirasti na cānilo me’sti na cāmbaraṃ ca ।
evaṃ viditvā paramātmarūpaṃ guhāśayaṃ niṣkalamadvitīyam ॥ 23
samastasākṣiṃ sadasadvihīnaṃ prayāti śuddhaṃ paramātmarūpam ॥

To Me there is no earth, water or fire. There is no Vāyu; there is no Ākāś. He who thinks Paramātmā as being in the cave (of the heart), as having no form, as being secondless, as being the witness of all and as being neither Sat nor Asat, attains the pure form of Paramātmā.

K. Narayanasvami Aiyar · Thirty Minor Upanishads (1914), pp. 31–33