Shiva Purana
कर्मयज्ञरताः केचित्तपोयज्ञरताः परे ॥ जपयज्ञरताश्चान्ये ध्यानयज्ञरतास्तथा ॥ ४५ ॥
Some of them were engaged in ritualistic ceremonies and others in austerities and sacrifices. Others were engaged in chanting mantras and performing sacrifices.
english translation
karmayajJaratAH kecittapoyajJaratAH pare ॥ japayajJaratAzcAnye dhyAnayajJaratAstathA ॥ 45 ॥
hk transliteration by Sanscript