Dua (Supplication) Before Sexual Intercourse in Islam: In Islam, it's encouraged to begin every important action with the name of Allah, including sexual relations between husband and wife. The Prophet Muhammad (ﷺ) taught a specific dua (prayer) for this.
Transliteration: Bismillāhi Allāhumma jannibnash-shayṭāna, wa jannibish-shayṭāna mā razaqtanā
English Translation: "In the name of Allah. O Allah, keep the devil away from us and keep the devil away from what You may grant us (children)."
Explanation: This dua is sunnah (practice of the Prophet ﷺ).
It should be recited before beginning sexual intercourse.
The purpose is to seek protection from Shaytan (Satan).
If a child is conceived, this dua helps ensure that the child is not influenced by Shaytan from birth.
Islamic Reference: Narrated by Ibn Abbas (رضي الله عنه):
The Messenger of Allah (ﷺ) said: “If any one of you says, when he has intercourse with his wife: 'In the name of Allah, O Allah, keep the devil away from us and keep the devil away from what You may grant us', and if it is decreed that they should have a child, then the devil will never harm him.” (Sahih al-Bukhari, Hadith 141)