"As a plow goes into a dirt field"

From here:

10. A husband has sex with his wife, as a plow goes into a dirt field.

The Quran in Sura (Chapter) 2:223 says:

Your women are your fields, so go into your fields whichever way you like
. . . . (MAS Abdel Haleem, The Qur’an, Oxford UP, 2004)

We should make no mistake about this verse. It includes sexual positions. In a footnote to this verse, Haleem says that Muslims in Medina heard from the Jews that "a child born from a woman approached from behind would have a squint."

The hadith are the reports of Muhammad’s words and actions outside of the Quran.
Two reliable hadith collectors and editors are Bukhari (d. 870), Muslim (d. 875). After the Quran, the hadith come second in importance and sacredness among the vast majority of Muslims around the world.

Since the hadith is explicit, the readers are invited to click here and read for
themselves, at their own discretion: Muslim nos.
3363-3365.

See these parallel hadith
here
and here.

We should have no doubt that the husband controlled their sex life. If a woman does not want to have sex, then angels curse her.

. . . "If a man invites his wife to sleep with him and she refuses to come to
him, then the angels send their curses on her till morning."
(Bukhari)

Here is the back-up article.
This one also provides back up material.
See the section at the beginning "Women Are Men’s Property."