Shiva Purana
शैवो यः परमो धर्मः श्रेष्ठानुष्ठानशब्दितः ॥ इतिहासपुराणाभ्यां कथंचिदुपबृंहितः ॥ ९ ॥
The greatest Dharma of Śiva termed the excellent practice is explained in the Itihāsas and the Purāṇas.
english translation
zaivo yaH paramo dharmaH zreSThAnuSThAnazabditaH ॥ itihAsapurANAbhyAM kathaMcidupabRMhitaH ॥ 9 ॥
hk transliteration by Sanscript