the seventh of the purusha incarnations of Vishnu, who was described
in the Srimad Bhagavatam, thus:
"tatah saptama akutyam
rucer yajño 'bhyajayata
sa yamadyaih sura-ganair
apat svayambhuvantaram
The seventh incarnation was Yajña, the son of Prajapati Ruci and
his wife Akuti. He controlled the period during the change of the
Svayambhuva Manu and was assisted by demigods such as His son Yama."
Bhag., Canto 1, Ch. 3, Text 12