Ibn" Abbas (Allah be pleased with thern) reported that Allah's Messenger (ﷺ) said:

If anyone amongst you intends to go to his wife he should say: In the name of Allah,0 Allah protect us against Satan and keep away the Satan from the one that you have bestowed upon us, and if He has ordained a male child for them, Satan will never be able to do any harm to him.

حَدَّثَنَا يَحْيَى بْنُ يَحْيَى، وَإِسْحَاقُ بْنُ إِبْرَاهِيمَ، - وَاللَّفْظُ لِيَحْيَى - قَالاَ أَخْبَرَنَا جَرِيرٌ، عَنْ مَنْصُورٍ، عَنْ سَالِمٍ، عَنْ كُرَيْبٍ، عَنِ ابْنِ عَبَّاسٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏

‏ لَوْ أَنَّ أَحَدَهُمْ إِذَا أَرَادَ أَنْ يَأْتِيَ أَهْلَهُ قَالَ بِاسْمِ اللَّهِ اللَّهُمَّ جَنِّبْنَا الشَّيْطَانَ وَجَنِّبِ الشَّيْطَانَ مَا رَزَقْتَنَا فَإِنَّهُ إِنْ يُقَدَّرْ بَيْنَهُمَا وَلَدٌ فِي ذَلِكَ لَمْ يَضُرَّهُ شَيْطَانٌ أَبَدًا ‏

‏‏.‏