SB 10.29.26

asvargyam ayaśasyaṁ ca
 phalgu kṛcchraṁ bhayāvaham
jugupsitaṁ ca sarvatra
 hy aupapatyaṁ kula-striyaḥ
Word for word: 
asvargyam — not leading to heaven; ayaśasyam — unfavorable for a good reputation; ca — and; phalgu — insignificant; kṛcchram - difficult: bhaya — āvaham — creating fear; jugupsitam — contemptible; ca — and; sarvatra — in all cases; hi — indeed; aupapatyam — adulterous affairs; kula-striyaḥ — for a woman coming from a respectable family.
Translation: 
For a woman from a respectable family, petty adulterous affairs are always condemned. They bar her from heaven, ruin her reputation and bring her difficulty and fear.