Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 18-19
Sanskrit:
देवोपलब्धिमप्राप्य निर्वेदात् सप्तमेऽहनि ।शिरोऽवृश्चत् सुधितिना तत्तीर्थक्लिन्नमूर्धजम् ॥ १८ ॥तदा महाकारुणिको स धूर्जटि-र्यथा वयं चाग्निरिवोत्थितोऽनलात् ।निगृह्य दोर्भ्यां भुजयोर्न्यवारयत्तत्स्पर्शनाद् भूय उपस्कृताकृति: ॥ १९ ॥
ITRANS:
devopalabdhim aprāpyanirvedāt saptame ’haniśiro ’vṛścat sudhitinātat-tīrtha-klinna-mūrdhajam
Translation:
Vṛkāsura became frustrated after failing to obtain a vision of the lord. Finally, on the seventh day, after dipping his hair into the holy waters at Kedāranātha and leaving it wet, he took up a hatchet and prepared to cut off his head. But at that very moment the supremely merciful Lord Śiva rose up out of the sacrificial fire, looking like the god of fire himself, and grabbed both arms of the demon to stop him from killing himself, just as we would do. By Lord Śiva’s touch, Vṛkāsura once again became whole.