It is permissible for a man to have intercourse with his wife from the front or from the back, without entering the behind

Sahih Muslim · Book 16 · Hadith 1435 a

حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، وَأَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ وَعَمْرٌو النَّاقِدُ - وَاللَّفْظُ لأَبِي بَكْرٍ - قَالُوا حَدَّثَنَا سُفْيَانُ عَنِ ابْنِ الْمُنْكَدِرِ سَمِعَ جَابرًا يَقُولُ كَانَتِ الْيَهُودُ تَقُولُ إِذَا أَتَى الرَّجُلُ امْرَأَتَهُ مِنْ دُبُرِهَا فِي قُبُلِهَا كَانَ الْوَلَدُ أَحْوَلَ فَنَزَلَتْ ‏{‏ نِسَاؤُكُمْ حَرْثٌ لَكُمْ فَأْت…

Jabir (Allah be pleased with him) declared that the Jews used to say: When a man has intercourse with his wife through the vagina but being on her back. the child will have squint, so the verse came down:" Your wives are…

Sahih Muslim · Book 16 · Hadith 1435 b

وَحَدَّثَنَا مُحَمَّدُ بْنُ رُمْحٍ، أَخْبَرَنَا اللَّيْثُ، عَنِ ابْنِ الْهَادِ، عَنْ أَبِي حَازِمٍ، عَنْ مُحَمَّدِ، بْنِ الْمُنْكَدِرِ عَنْ جَابِرِ بْنِ عَبْدِ اللَّهِ، أَنَّ يَهُودَ، كَانَتْ تَقُولُ إِذَا أُتِيَتِ الْمَرْأَةُ مِنْ دُبُرِهَا فِي قُبُلِهَا ثُمَّ حَمَلَتْ كَانَ وَلَدُهَا أَحْوَلَ ‏.‏ قَالَ فَأُنْزِلَتْ ‏{‏ نِسَاؤُكُمْ حَرْثٌ لَكُمْ فَأْتُوا حَ…

Jabir (b. Abdullah) (Allah be pleased with him) reported that the Jews used to say that when one comes to one's wife through the vagina, but being on her back, and she becomes pregnant, the child has a squint. So the ver…