תּלמוד אויף בראשית 20:3

So far for Israel. For the Gentiles? Rebbi Abbahu in the name of Rebbi Eleazar³²In Gen.rabba 18(8), a parallel source for this and the following paragraphs: R. Abbahu in the name of R. Joḥanan.: It is written³³Gen. 20:3, speaking to the Gentile Abimelech. “you shall die because of the woman whom you took, since she is having marital relations with a husband.” They are guilty for those having marital relations; they are not guilty for the betrothed³⁴Babli, Sanhedrin 57b.. The words of Rebbi Eleazar imply, only if he had intention of acquiring her; the words of Samuel imply, even if he had no intention of acquiring her; since Rebbi Jonah said in the name of Samuel³⁵In Gen.rabba: “Rebbi Samuel.” For chronological reasons, and also because he is quoted after R. Eleazar, the reading of Gen.rabba is the only acceptable one.: “A prostitute stands in a window³⁶To attract customers.. Two men sleep with her. The first one³⁷Who deflowers her. In R. Samuel’s opinion, a Gentile marriage can be contracted only by intercourse and there is no divorce. Therefore, a free woman is automatically married to the man who deflowers her and any subsequent intercourse with any other man (during the first man’s lifetime) is adultery. is not killed, the second one is killed because of him³⁸As an adulterer. In his theory, a Gentile can sleep without guilt only with a wife whom he married as a virgin, or a chaste widow, or a servile prostitute who as a slave cannot marry..” But did the first one intend to acquire her³⁹According to R. Eleazar, Gentiles can be married only by mutual consent. Then they also can repudiate the marriage.
In Gen.rabba 18(8) only R. Samuel’s opinion is quoted, with the addition that “for Gentiles, intercourse acquires automatically.”?

Rava raised an objection to Rav Hisda [from the following verse]: "Behold, you should die because of the woman you have taken" (Genesis 20:3) [regarding Avimelekh and taking Sarah as his wife when he thought that she was Abraham's sister]. Does this not mean that he should die at the hands of people?