Vishnupurana 3.15.p7

3.15.p7

"O king, the moon is the supporter of the manes and he is sustained by acts of austere devotion. Hence one, who practises austerities, should be appointed at the performance of a Srāddha. O king, if there is one Yogi in the midst of a thousand Brāhmans, he liberates both the sacrificer and all those who take their meals there".