Srimad Bhagavatam Canto 06, Chapter 19, Text 24

SB 6.19.24

acaryam agratah krtva
 vag-yatah saha bandhubhih
dadyat patnyai caroh sesam
 suprajastvam susaubhagam
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
Before taking his meal, the husband must first seat the acarya comfortably, and, along with his relatives and friends, should control his speech and offer prasada to the guru. Then the wife should eat the remnants of the oblation of sweetrice cooked with ghee. Eating the remnants insures a learned, devoted son and all good fortune.
Srimad Bhagavatam Canto 06, Chapter 19, Text 23
Srimad Bhagavatam Canto 06, Chapter 19, Text 25