Srimad Bhagavatam Canto 09, Chapter 18, Text 30

SB 9.18.30

nahusaya sutam dattva
 saha sarmisthayosana
tam aha rajañ charmistham
 adhas talpe na karhicit
 
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
 
When Sukracarya gave Devayani in marriage to Yayati, he had Sarmistha go with her, but he warned the King, “My dear King, never allow this girl Sarmistha to lie with you in your bed.”