What is the dhikr said by the husband and his wife before having intercourse?

Praise be to Allah, the Lord of the Worlds; and may His blessings and peace be upon our Prophet Muhammad and upon all his Family and Companions.

al-Bukhari and Muslim reported from Ibn 'Abbas (RAA) that the Prophet (Sallallahu Alaihi wa Sallam) said: "If one of you says when he lies with his wife: 'In the Name of Allah; O Allah, ward off from us the devil, and ward off the devil from what you bless us with, and if it is decreed that they have a child, the devil will never harm him"
This Hadith indicates that a man is advised to say what is mentioned above.
Allah knows best.