I have heard two points in a lecture regarding procedures related to after the Nikah.
1) It is Sunnah sprinkle water on each spouse.
2) It is Sunnah for the father of the bride to go to the house of the couple and make Du’a for them. It was mentioned that Nabi (Sallallahu ‘alayhi wa sallam) went to the home of Sayyidatuna Fatimah (radiyallahu ‘anha) after the Nikah and made a certain du’a for them. I humbly request if you could please explain the steps outlined above as well as include the relevant du’as and references.