Shiva Purana
अदुःखेना ऽपि शक्तो ऽसौ पशून्मोचयितुं शिवः ॥ कथं दुःखं करोतीति नात्र कार्या विचारणा ॥ ८२ ॥
In this regard no doubt need be entertained—“Śiva can liberate the souls without subjecting them to misery. Why does he then subject them to misery?”
english translation
aduHkhenA 'pi zakto 'sau pazUnmocayituM zivaH ॥ kathaM duHkhaM karotIti nAtra kAryA vicAraNA ॥ 82 ॥
hk transliteration by Sanscript