Srimad Bhagavatam Canto 04, Chapter 01, Text 04

SB 4.1.4

yas tayoh purusah saksad
visnur yajña-svarupa-dhrk
ya stri sa daksina bhuter
amsa-bhutanapayini
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Of the two children born of Akuti, the male child was directly an incarnation of the Supreme Personality of Godhead, and His name was Yajña, which is another name of Lord Visnu. The female child was a partial incarnation of Laksmi, the goddess of fortune, the eternal consort of Lord Visnu.
 
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Laksmi, the goddess of fortune, is the eternal consort of Lord Visnu. Here it is stated that both the Lord and Laksmi, who are eternal consorts, appeared from Akuti simultaneously. Both the Lord and His consort are beyond this material creation, as confirmed by many authorities (narayanah paro ’vyaktat); therefore their eternal relationship cannot be changed, and Yajña, the boy born of Akuti, later married the goddess of fortune.
Srimad Bhagavatam Canto 04, Chapter 01, Text 03
Srimad Bhagavatam Canto 04, Chapter 01, Text 05