(52) باب الشُّرُوطِ فِي النِّكَاحِ
Narrated `Uqba:
The Prophet (ﷺ) said: "The stipulations most entitled to be abided by are those with which you are given the right to enjoy the (women's) private parts (i.e. the stipulations of the marriage contract).
Reference: Sahih al-Bukhari 5151
In-book reference: Book 67, Hadith 86
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 7, Book 62, Hadith 81