Shiva Purana
स्वभावो विपरीतश्चेत्स्वतंत्रः स्वेच्छया यदि ॥ न करोति किमीशानो नित्यानित्यविपर्ययम् ॥ ९ ॥
If you say that his innate nature is reverted by his own wish he being free, why does not Īśāna make an interchange in permanent and non-permanent things?
english translation
svabhAvo viparItazcetsvataMtraH svecchayA yadi ॥ na karoti kimIzAno nityAnityaviparyayam ॥ 9 ॥
hk transliteration by Sanscript