I did not see but good only (in my wife). Thereupon Messenger of Allah ﷺ said: Verily Allah has made her immune from all this. Then Messenger of Allah ﷺ stood on the pulpit and said: After this day no man should enter the house of another person in his absence, but only when he is accompanied by one person or two persons. (Using translation from Muslim 2173)  

أَنَّ نَفَرًا مِنْ بَنِي هَاشِمٍ دَخَلُوا عَلَى أَسْمَاءَ بِنْتِ عُمَيْسٍ فَدَخَلَ أَبُو بَكْرٍ وَهِيَ تَحْتَهُ يَوْمَئِذٍ فَكَرِهَ ذَلِكَ فَذَكَرَ ذَلِكَ لِرَسُولِ اللهِ ﷺ فَقَالَ «إِنِّي لَمْ أَرَ إِلَّا خَيْرًا» فَقَالَ «إِنَّ اللهَ قَدْ بَرَّأَهَا مِنْ ذَلِكَ ثُمَّ قَامَ رَسُولُ اللهِ ﷺ عَلَى الْمِنْبَرِ» فَقَالَ «لَا يَدْخُلَنَّ رَجُلٌ بَعْدَ يَوْمِي هَذَا عَلَى مُغِيبَةٍ إِلَّا وَمَعَهُ رَجُلٌ أَوْ رَجُلَانِ»