Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates that this verse was revealed about the Ansar people: {نِسَاؤُکُمْ حَرْثٌ لَّکُمْ فَاْتُوْا حَرْثَکُمْ اَنّٰی شِئْتُمْ} (Surah Al-Baqarah: 223) ... Your wives are your fields, so come to your fields as you wish. But only one orifice should be used. When those people came to the Noble Prophet (peace and blessings be upon him) and asked him about this, the Noble Prophet (peace and blessings be upon him) said: You may have intercourse with your wife in any manner you wish, provided that only the intercourse organ is used.