Narrated 'Aamir bin 'Abdullah bin az-Zubair on the authority of his father:

Allah's Messenger (ﷺ) said: "Make marriage publicly known." [Reported by Ahmad and al-Hakim graded it Sahih (authentic)].

وَعَنْ عَامِرِ بْنِ عَبْدِ اَللَّهِ بْنِ اَلزُّبَيْرِ , عَنْ أَبِيهِ ; أَنَّ رَسُولَ اَللَّهِ ‏- صلى الله عليه وسلم ‏-قَالَ : { أَعْلِنُوا اَلنِّكَاحَ } رَوَاهُ أَحْمَدُ , وَصَحَّحَهُ اَلْحَاكِمُ [1]‏ .‏