Answered by Sayyidi Habib Umar bin Hafiz (may Allah protect him and benefit us by him)
I am preparing to get married. Is there something I should recite at this time?
Recite the following in abundance:
مَا شَاءَ اللهُ لا حَوْلَ ولا قوَّةَ إلَّا باللهِ
اللَّهُمَّ صَلِّ عَلى سَيِّدِنَا مُحَمَّدٍ وآلِ سَيِّدِنَا مُحَمَّدٍ وبارِكْ وسَلِّمْ
Ma sha Allah la hawl wa la quwata illa billah
Allahumma salli ala sayyidina Muhammad wa ali sayyidina Muhammad wa barik wa sallim
This is what Allah willed; there is no strength or power save by Allah.
O Allah, bestow prayers, peace and blessings upon our Master Muhammad and his Family
Also repeat the last two verses of Surat al-Tawbah. This has the effect of bringing harmony between people.
لَقَدْ جَاءكُمْ رَسُولٌ مِّنْ أَنفُسِكُمْ عَزِيزٌ عَلَيْهِ مَا عَنِتُّمْ حَرِيصٌ عَلَيْكُم بِالْمُؤْمِنِينَ رَؤُوفٌ رَّحِيمٌ فَإِن تَوَلَّوْاْ فَقُلْ حَسْبِيَ اللَّهُ لا إِلَـهَ إِلاَّ هُوَ عَلَيْهِ تَوَكَّلْتُ وَهُوَ رَبُّ الْعَرْشِ الْعَظِيمِ
Laqad ja’akum rasulumin anfusikum `azizun `alayhi ma `anittum harisun `alaykum bi’lmu’minin ra’ufurrahim. Fa in tawallaw faqul hasbiyallahu la ilaha illa Hu `alayhi tawakkaltu wa huwa rabbu’l-`arshi’-l-`azim.
There has come to you a Messenger from among yourselves, grievous to whom is your burden, concerned (is he) for you; for the believers (he is) full of compassion, merciful. If they turn away say: ‘Allah is sufficient for me; there is no deity save He. On Him do I rely; He is the Lord of the Awesome Throne.’ (Al-Tawbah, 9:128-9)