Shiva Purana
भवन्तोऽपि विदित्वैवम्प्रणवार्थम्महेश्वरम्॥ वेदगुह्यं च सर्वस्वन्तार कम्ब्रह्म मुक्तिदम् ॥ ४४ ॥
You too, knowing thus the purpose of the oṁkāra, the Supreme Lord. The secret of the Vedas is the all-pervading Kambrahma and the giver of liberation.
english translation
bhavanto'pi viditvaivampraNavArthammahezvaram॥ vedaguhyaM ca sarvasvantAra kambrahma muktidam ॥ 44 ॥
hk transliteration by Sanscript