Shiva Purana
ईदृशानां प्रभूतानि तस्मादव्यक्तजन्मनः ॥ दारुण्यग्निस्तिले तैलं पयस्सु च यथा घृतम् ॥ २५ ॥
Therefore these are the greatest things of the unmanifest birth. Just as oil is in sesame seeds and butter in milk.
english translation
IdRzAnAM prabhUtAni tasmAdavyaktajanmanaH ॥ dAruNyagnistile tailaM payassu ca yathA ghRtam ॥ 25 ॥
hk transliteration by Sanscript