Shiva Purana
अस्त्रम्पाशुपतं स्वीयन्दुर्जयं सर्वदाखिलैः ॥ ददौ तस्मै महेशानो वचनश्चेदमब्रवीत् ॥ ५५ ॥
Lord Śiva gave him Pāśupata missile that could not be thwarted by anyone at any time and spoke thus.
english translation
astrampAzupataM svIyandurjayaM sarvadAkhilaiH ॥ dadau tasmai mahezAno vacanazcedamabravIt ॥ 55 ॥
hk transliteration by Sanscript