The Apostle of Allaah ( sal Allaahu alayhi wa sallam ) used to remember Allaah, the Great and Majestic, at all moments.  

كَانَ رَسُولُ اللَّهِ ﷺ يَذْكُرُ اللَّهَ ﷻ عَلَى كُلِّ أَحْيَانِهِ  

The Messenger of Allah used to remember Allah in all circumstances.  

أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ يَذْكُرُ اللَّهَ عَلَى كُلِّ أَحْيَانِهِ  

the Messenger of Allah ﷺ used to remember Allah in all of his affairs.  

كَانَ رَسُولُ اللَّهِ ﷺ يَذْكُرُ اللَّهَ عَلَى كُلِّ أَحْيَانِهِ  

The Prophet ﷺ said, "If anyone of you on having sexual relations with his wife said (and he must say it before starting) 'In the name of Allah. O Allah! Protect us from Satan and also protect what you bestow upon us (i.e. the coming offspring) from Satan, and if it is destined that they should have a child then, Satan will never be able to harm that offspring."  

يَبْلُغُ بِهِ النَّبِيَّ ﷺ قَالَ لَوْ أَنَّ أَحَدَكُمْ إِذَا أَتَى أَهْلَهُ قَالَ بِسْمِ اللَّهِ اللَّهُمَّ جَنِّبْنَا الشَّيْطَانَ وَجَنِّبِ الشَّيْطَانَ مَا رَزَقْتَنَا فَقُضِيَ بَيْنَهُمَا وَلَدٌ لَمْ يَضُرَّهُ  

The Prophet ﷺ said, "If anyone of you, when having sexual relation with his wife, say: 'In the name of Allah. O Allah! Protect us from Satan and prevent Satan from approaching our offspring you are going to give us,' and if he begets a child (as a result of that relation) Satan will not harm it."  

عَنِ النَّبِيِّ ﷺ قَالَ أَمَا إِنَّ أَحَدَكُمْ إِذَا أَتَى أَهْلَهُ وَقَالَ بِسْمِ اللَّهِ اللَّهُمَّ جَنِّبْنَا الشَّيْطَانَ وَجَنِّبِ الشَّيْطَانَ مَا رَزَقْتَنَا فَرُزِقَا وَلَدًا لَمْ يَضُرُّهُ الشَّيْطَانُ  

The Prophet ﷺ said, "If anyone of you, on having sexual relation with his wife, says: 'O Allah! Protect me from Satan, and prevent Satan from approaching the offspring you are going to give me,' and if it happens that the lady conceives a child, Satan will neither harm it nor be given power over it."  

قَالَ النَّبِيُّ ﷺ لَوْ أَنَّ أَحَدَكُمْ إِذَا أَتَى أَهْلَهُ قَالَ {اللَّهُمَّ} جَنِّبْنِي الشَّيْطَانَ وَجَنِّبِ الشَّيْطَانَ مَا رَزَقْتَنِي فَإِنْ كَانَ بَيْنَهُمَا وَلَدٌ لَمْ يَضُرُّهُ الشَّيْطَانُ وَلَمْ يُسَلَّطْ عَلَيْهِ قَالَ وَحَدَّثَنَا الأَعْمَشُ عَنْ سَالِمٍ عَنْ كُرَيْبٍ عَنِ ابْنِ عَبَّاسٍ مِثْلَهُ  

The Prophet ﷺ said, "If anyone of you, when having sexual intercourse with his wife, says: Bismillah, Allahumma jannibni-Sh-Shaitan wa jannib-ish-Shaitan ma razaqtana, and if it is destined that they should have a child, then Satan will never be able to harm him."  

قَالَ النَّبِيُّ ﷺ أَمَا لَوْ أَنَّ أَحَدَهُمْ يَقُولُ حِينَ يَأْتِي أَهْلَهُ بِاسْمِ اللَّهِ اللَّهُمَّ جَنِّبْنِي الشَّيْطَانَ وَجَنِّبِ الشَّيْطَانَ مَا رَزَقْتَنَا ثُمَّ قُدِّرَ بَيْنَهُمَا فِي ذَلِكَ أَوْ قُضِيَ وَلَدٌ لَمْ يَضُرَّهُ شَيْطَانٌ أَبَدًا  

The Prophet ﷺ said, "If anyone of you, when intending to have a sexual intercourse with his wife, says: 'Bismillah, Allahumma jannibna-sh-shaitan, wa jannibi-sh-shaitan ma razaqtana,' and if the couple are destined to have a child (out of that very sexual relation), then Satan will never be able to harm that child."  

قَالَ النَّبِيُّ ﷺ 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  

Messenger of Allah ﷺ said, "If anyone of you, when intending to have a sexual relation (sleep) with his wife, says: Bismillah, Allahumma jannibna ashShaitan, wa Jannib ash-Shaitana ma razaqtana, Satan would never harm that child, should it be ordained that they will have one. (Because of that sleep).  

قَالَ رَسُولُ اللَّهِ ﷺ لَوْ أَنَّ أَحَدَكُمْ إِذَا أَرَادَ أَنْ يَأْتِيَ أَهْلَهُ فَقَالَ بِاسْمِ اللَّهِ اللَّهُمَّ جَنِّبْنَا الشَّيْطَانَ وَجَنِّبِ الشَّيْطَانَ مَا رَزَقْتَنَا فَإِنَّهُ إِنْ يُقَدَّرْ بَيْنَهُمَا وَلَدٌ فِي ذَلِكَ لَمْ يَضُرُّهُ شَيْطَانٌ أَبَدًا