Shiva Purana
इदं चरितं परमं पवित्रं शिवावतारस्य पवित्रकीर्तेः ॥ यतीशसंज्ञस्य महाद्भुतं हि हंसाह्वयस्यापि विमुक्तिदं हि ॥ ३८ ॥
This great and holy narrative of Śiva’s incarnation of illustrious fame as swan is wonderful and indeed the bestower of salvation.
english translation
idaM caritaM paramaM pavitraM zivAvatArasya pavitrakIrteH ॥ yatIzasaMjJasya mahAdbhutaM hi haMsAhvayasyApi vimuktidaM hi ॥ 38 ॥
hk transliteration by Sanscript