Invocation to be recited before intercourse
بِسْمِ الله
اللّهُـمَّ جَنِّبْنا الشَّيْـطانَ، وَجَنِّبِ الشَّـيْطانَ ما رَزَقْـتَنا
192. Bismillaah. Allaahumma jannibnash-Shaytaana, wa jannibish-Shaytaana
maa razaqtanaa.
With
the Name of Allah. O Allah, keep the I Devil away from us and keep the
Devil away from that which You provide for us.
Reference: Al-Bukhari
6/141, Muslim 2/1028.