Below is the translation of one of the Duas that the Remnant of our Akabir, the Sublime Spiritual Leader, Sultaanul Aarifeen, the Grand Mufti, Allamah Mufti Ahmed Khanpuri (May Allah preserve him) usually makes after conducting any nikah ceremony. The Dua is usually commenced with Arabic Masnoon Duas and ended with Arabic ones. Below are his personal words.
O Allah, accept this marriage. Create love and fondness between the spouses. Grant both the ability to fulfill each other’s rights as much as possible and fully protect them from trampling each other’s rights. Make each help the other in doing good deeds and cause each of them to be a means of protecting the other from sin and evil actions. Make this marriage a means of protecting gazes, private parts, chastity and modesty. Make it a means of producing righteous off springs. Grant both of them blessings and vastness in their sustenance. All good, which is connected to nikah that the Nabi Karim (صلى الله عليه وسلم) ever asked for, grant it to them and all the evils connected to marriage that the Nabi Karim (صلى الله عليه وسلم) ever sought protection from, then protect them from it.
Aameen Ya Rabbal A’lameen.
[Dua Aise Mange (Supplicate in this Manner) Pg.40]
The pdf of the original Urdu book is available here.