Sunan an-Nasa'i #3281 · The Book of Marriage

Sunan an-Nasa'iIt was narrated from 'Utbah bin 'Amir that the Messenger of Allah said
Sunan an-Nasa'i · Book 26 · The Book of Marriage
Sunan an-Nasa'i · كتاب 26 · كتاب النكاح
"The conditions that are most deserving of fulfillment, are those by means of which the private parts become allowed to you
أَخْبَرَنَا عِيسَى بْنُ حَمَّادٍ، قَالَ أَنْبَأَنَا اللَّيْثُ، عَنْ يَزِيدَ بْنِ أَبِي حَبِيبٍ، عَنْ أَبِي الْخَيْرِ، عَنْ عُقْبَةَ بْنِ عَامِرٍ، عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم قَالَ ‏
"‏ إِنَّ أَحَقَّ الشُّرُوطِ أَنْ يُوَفَّى بِهِ مَا اسْتَحْلَلْتُمْ بِهِ الْفُرُوجَ ‏"‏ ‏.‏
Reference : Sunan an-Nasa'i 3281In-book reference : Book 26, Hadith 86