Shiva Purana
भवद्भिरपि दातव्यमेतद्गुह्यं शिवप्रियम् ॥ यतिभ्यश्शान्तचित्तेभ्यो भक्तेभ्यश्शिवपादयोः ॥ ५६ ॥
This secret lore dear to Śiva shall be given by you only to ascetics of quiet minds, devotees of Śiva’s feet.
english translation
bhavadbhirapi dAtavyametadguhyaM zivapriyam ॥ yatibhyazzAntacittebhyo bhaktebhyazzivapAdayoH ॥ 56 ॥
hk transliteration by Sanscript