Shiva Purana
तदहं सम्प्रवक्ष्यामि यथा रुद्रसमुद्भवः ॥ यथा च पुनरुत्पत्तिर्ब्रह्मविष्ण्वोः परस्परम् ॥ १२ ॥
I shall narrate how Rudra was born and how Brahmā and Viṣṇu were born from each other.
english translation
tadahaM sampravakSyAmi yathA rudrasamudbhavaH ॥ yathA ca punarutpattirbrahmaviSNvoH parasparam ॥ 12 ॥
hk transliteration by Sanscript