‘Uqbah bin ‘Amir reported the Apostle of Allaah ﷺ as saying “The condition worthier to be fulfilled by you is the one by which you made the private parts (of your wife) lawful (for you). (Using translation from Abū Dāʾūd 2139)
عَنِ النَّبِيِّ ﷺ قَالَ «إِنَّ أَحَقَّ الشُّرُوطِ أَنْ تُوفُوا بِهِ مَا اسْتَحْلَلْتُمْ بِهِ الْفُرُوجَ»