Shiva Purana
देवाश्च पितरश्चैव यजध्वं त्रिदिवौकसः ॥ परस्परं महाप्रीत्या सर्वकामफलप्रदा॥ ५२॥
O dwellers of heaven, let the gods and the Pitṛs worship one another with great delight. This will confer the cherished desires.”
english translation
devAzca pitarazcaiva yajadhvaM tridivaukasaH ॥ parasparaM mahAprItyA sarvakAmaphalapradA॥ 52॥
hk transliteration by Sanscript