Shiva Purana
सूत उवाच ॥ इत्युक्तश्च तदा तेन शंभुर्वै रावणेन सः ॥ प्रत्युवाच विचेतस्कः संकटं परमं गतः ॥ १३॥
Sūta said:— Thus addressed by Rāvaṇa, Śiva was in a dilemma and a bit disinclined. He replied.
english translation
sUta uvAca ॥ ityuktazca tadA tena zaMbhurvai rAvaNena saH ॥ pratyuvAca vicetaskaH saMkaTaM paramaM gataH ॥ 13॥
hk transliteration by Sanscript