Abu Huraira reported Messenger of Allah ﷺ as saying. Allah fixed the very portion of adultery which a man will indulge in. There would be no escape from it. The adultery of the eye is the lustful look and the adultery of the ears is listening to voluptuous (song or talk) and the adultery of the tongue is licentious speech and the adultery of the hand is the lustful grip (embrace) and the adultery of the feet is to walk (to the place) where he intends to commit adultery and the heart yearns and desires which he may or may not put into effect.  

عَنِ النَّبِيِّ ﷺ قَالَ كُتِبَ عَلَى ابْنِ آدَمَ نَصِيبُهُ مِنَ الزِّنَى مُدْرِكٌ ذَلِكَ لاَ مَحَالَةَ فَالْعَيْنَانِ زِنَاهُمَا النَّظَرُ وَالأُذُنَانِ زِنَاهُمَا الاِسْتِمَاعُ وَاللِّسَانُ زِنَاهُ الْكَلاَمُ وَالْيَدُ زِنَاهَا الْبَطْشُ وَالرِّجْلُ زِنَاهَا الْخُطَا وَالْقَلْبُ يَهْوَى وَيَتَمَنَّى وَيُصَدِّقُ ذَلِكَ الْفَرْجُ وَيُكَذِّبُهُ  

The Prophet ﷺ said, "Beware! Avoid sitting on he roads (ways)." The people said, "There is no way out of it as these are our sitting places where we have talks." The Prophet ﷺ said, "If you must sit there, then observe the rights of the way." They asked, "What are the rights of the way?" He said, "They are the lowering of your gazes (on seeing what is illegal to look at), refraining from harming people, returning greetings, advocating good and forbidding evil."  

عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ ؓ عَنِ النَّبِيِّ ﷺ قَالَ إِيَّاكُمْ وَالْجُلُوسَ عَلَى الطُّرُقَاتِ فَقَالُوا مَا لَنَا بُدٌّ إِنَّمَا هِيَ مَجَالِسُنَا نَتَحَدَّثُ فِيهَا قَالَ فَإِذَا أَبَيْتُمْ إِلاَّ الْمَجَالِسَ فَأَعْطُوا الطَّرِيقَ حَقَّهَا قَالُوا وَمَا حَقُّ الطَّرِيقِ قَالَ غَضُّ الْبَصَرِ وَكَفُّ الأَذَى وَرَدُّ السَّلاَمِ وَأَمْرٌ بِالْمَعْرُوفِ وَنَهْىٌ عَنِ الْمُنْكَرِ  

The Prophet ﷺ said, 'Beware! Avoid sitting on the roads." They (the people) said, "O Allah s Apostle! We can't help sitting (on the roads) as these are (our places) here we have talks." The Prophet ﷺ said, ' l f you refuse but to sit, then pay the road its right ' They said, "What is the right of the road, O Allah's Apostle?" He said, 'Lowering your gaze, refraining from harming others, returning greeting, and enjoining what is good, and forbidding what is evil."  

عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ ؓ أَنَّ النَّبِيَّ ﷺ قَالَ إِيَّاكُمْ وَالْجُلُوسَ بِالطُّرُقَاتِ فَقَالُوا يَا رَسُولَ اللَّهِ مَا لَنَا مِنْ مَجَالِسِنَا بُدٌّ نَتَحَدَّثُ فِيهَا فَقَالَ إِذَا أَبَيْتُمْ إِلاَّ الْمَجْلِسَ فَأَعْطُوا الطَّرِيقَ حَقَّهُ قَالُوا وَمَا حَقُّ الطَّرِيقِ يَا رَسُولَ اللَّهِ قَالَ غَضُّ الْبَصَرِ وَكَفُّ الأَذَى وَرَدُّ السَّلاَمِ وَالأَمْرُ بِالْمَعْرُوفِ وَالنَّهْىُ عَنِ الْمُنْكَرِ  

While we were sitting in front of the houses and talking amongst ourselves, Messenger of Allah ﷺ happened to come there. He stood by us and said: What about you and your meetings on the paths? Avoid these meetings on the paths. We said: We were sitting here without (any intention of doing harm to the passers-by) ; we are sitting to discuss matters and to hold conversation amongst ourselves. Thereupon he said: If there is no help (for you but to sit on these paths), then give the paths their rights and these are lowering of the gaze, exchanging of greetings and good conversation.  

أَبُو طَلْحَةَ كُنَّا قُعُودًا بِالأَفْنِيَةِ نَتَحَدَّثُ فَجَاءَ رَسُولُ اللَّهِ ﷺ فَقَامَ عَلَيْنَا فَقَالَ مَا لَكُمْ وَلِمَجَالِسِ الصُّعُدَاتِ اجْتَنِبُوا مَجَالِسَ الصُّعُدَاتِ فَقُلْنَا إِنَّمَا قَعَدْنَا لِغَيْرِ مَا بَاسٍ قَعَدْنَا نَتَذَاكَرُ وَنَتَحَدَّثُ قَالَ إِمَّا لاَ فَأَدُّوا حَقَّهَا غَضُّ الْبَصَرِ وَرَدُّ السَّلاَمِ وَحُسْنُ الْكَلاَمِ  

I asked Messenger of Allah ﷺ about the sudden glance (that is cast) on the face (of a non-Mahram). He commanded me that I should turn away my eyes.  

سَأَلْتُ رَسُولَ اللَّهِ ﷺ عَنْ نَظَرِ الْفُجَاءَةِ فَأَمَرَنِي أَنْ أَصْرِفَ بَصَرِي  

I was with the Messenger of Allah ﷺ while Maymunah was with him. Then Ibn Umm Maktum came. This happened when we were ordered to observe veil (purdah). The Prophet ﷺ said: Observe veil from him. We asked: Messenger of Allah! is he not blind? He can neither see us nor recognise us. The Prophet ﷺ said: Are both of you blind? Do you not see him? AbuDawud said: This was peculiar to the wives of the Prophet ﷺ. Do you not see that Fatimah daughter of Qays passed her waiting period with Ibn Umm Maktum. The Prophet ﷺ said to Fatimah daughter of Qays: Pass your waiting period with Ibn Umm Maktum, for he is a blind man. You can put off your clothes with him.  

كُنْتُ عِنْدَ رَسُولِ اللَّهِ ﷺ وَعِنْدَهُ مَيْمُونَةُ فَأَقْبَلَ ابْنُ أُمِّ مَكْتُومٍ وَذَلِكَ بَعْدَ أَنْ أُمِرْنَا بِالْحِجَابِ فَقَالَ النَّبِيُّ ﷺ احْتَجِبَا مِنْهُ فَقُلْنَا يَا رَسُولَ اللَّهِ أَلَيْسَ أَعْمَى لاَ يُبْصِرُنَا وَلاَ يَعْرِفُنَا فَقَالَ النَّبِيُّ ﷺ أَفَعَمْيَاوَانِ أَنْتُمَا أَلَسْتُمَا تُبْصِرَانِهِ  

The Messenger of Allah ﷺ said: A man should not see the private parts of another man, and a woman should not see the private parts of another woman, and a man should not lie with another man under one covering, and a woman should not lie with another woman under one covering.  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ لاَ يَنْظُرُ الرَّجُلُ إِلَى عَوْرَةِ الرَّجُلِ وَلاَ الْمَرْأَةُ إِلَى عَوْرَةِ الْمَرْأَةِ وَلاَ يُفْضِي الرَّجُلُ إِلَى الرَّجُلِ فِي ثَوْبٍ وَاحِدٍ وَلاَ تُفْضِي الْمَرْأَةُ إِلَى الْمَرْأَةِ فِي الثَّوْبِ الْوَاحِدِ