Shiva Purana
यो ऽसौ रुद्रात्मको बह्निब्रह्मणो मानसस्सुतः ॥ स्वाहा तस्य प्रिया लेभे पुत्रांस्त्रीनमितौजसः ॥ ३७ ॥
Svāhā, wife of the fire-god the mental son of Brahma in the form of Rudra, bore three sons of unmeasured splendour.
english translation
yo 'sau rudrAtmako bahnibrahmaNo mAnasassutaH ॥ svAhA tasya priyA lebhe putrAMstrInamitaujasaH ॥ 37 ॥
hk transliteration by Sanscript