Shiva Purana
एतत्सदाशिवस्यैव कृत्यद्वयमुदाहृतम् ॥ अनुग्रहेऽपि सृष्ट्यादिकृत्यानां पंचकं विभोः ॥ २९ ॥
This is the twofold function of Śiva for ever. The five functions of creation etc. come under Anugraha.
english translation
etatsadAzivasyaiva kRtyadvayamudAhRtam ॥ anugrahe'pi sRSTyAdikRtyAnAM paMcakaM vibhoH ॥ 29 ॥
hk transliteration by Sanscript