Shiva Purana
ऋषिभिर्यज्ञपटुभिर्यथावत्कर्मकर्तृभिः ॥ विधिना वेददृष्टेन स्वनुष्ठितबहुक्रमम् ॥ ३ ॥
The rites were performed neatly in accordance with the rules found in the Vedas by the sages who were experts in sacrifices and who performed the rites properly.
english translation
RSibhiryajJapaTubhiryathAvatkarmakartRbhiH ॥ vidhinA vedadRSTena svanuSThitabahukramam ॥ 3 ॥
hk transliteration by Sanscript