حَدَّثَنَا ابْنُ أَبِي عُمَرَ، حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنْ مَنْصُورٍ، عَنْ سَالِمِ بْنِ أَبِي الْجَعْدِ، عَنْ كُرَيْبٍ، عَنِ ابْنِ عَبَّاسٍ، قَالَ قَالَ النَّبِيُّ صلى الله عليه وسلم ‏"‏ لَوْ أَنَّ أَحَدَكُمْ إِذَا أَتَى أَهْلَهُ قَالَ بِسْمِ اللَّهِ اللَّهُمَّ جَنِّبْنَا الشَّيْطَانَ وَجَنِّبِ الشَّيْطَانَ مَا رَزَقْتَنَا فَإِنْ قَضَى اللَّهُ بَيْنَهُمَا وَلَدًا لَمْ يَضُرَّهُ الشَّيْطَانُ ‏"‏ ‏.‏ قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ ‏.‏

Ibn Abbas narrated that: The Messenger of Allah said: "If anyone of you, when having sexual intercourse with his wife, says: (Bismillah, Allahumma jannibnash-Shaitana wa jannibish-Shaitana ma razaqtana) 'In the Name of Allah, O Allah! Protect me from Shaitan and protect what you bestow upon us from Shaitan' - then if Allah decrees that they should have a child, Shaitan will not be able to harm him.'" Translation Not Available

Book Ref: Jamiya Tirmidhi Book 11 Hadith 1092
Web Ref:  Jamiya Tirmidhi Vol 2 Book 6 Hadith 1092