Sayyiduna Jabir (may Allah be pleased with him) narrates: The Jews said: When a man has intercourse with his wife from behind, the child born is cross-eyed. Then this verse was revealed: "Your wives are your fields; so come to your field as you wish." (The narrator says) So now, whether a man approaches from the front or from behind, as long as the place of intercourse is the same, (there is no harm in it).