Shiva Purana
सनत्कुमार उवाच॥ सप्त ते तपतां श्रेष्ठ स्वर्गे पितृगणास्स्मृताः ॥ चत्वारो मूर्त्तिमंतो वै त्रयश्चैव ह्यमूर्तयः ॥ १॥
Sanatkumāra said:— O foremost among the performers of penance, the Pitṛs in the heaven are seven in number. Four of them are embodied and three bodiless.
english translation
sanatkumAra uvAca॥ sapta te tapatAM zreSTha svarge pitRgaNAssmRtAH ॥ catvAro mUrttimaMto vai trayazcaiva hyamUrtayaH ॥ 1॥
hk transliteration by Sanscript