وَعَنْ جَابِرٍ رَضِيَ اللَّهُ عَنْهُ
قَالَ: قَالَ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «إِلَّا لَا يبتن رَجُلٌ عِنْدَ امْرَأَةٍ ثَيِّبٍ إِلَّا أَنْ يَكُونَ ناكحا أَو ذَا محرم»
The Messenger of Allah (sallallahu alayhi wa sallam) said:, “A man must not spend the night in the house of a woman who has been married unless he is her husband or a close relative.”
Mishkat al-Masabih 2977, Book 14, Marriage, Hadith 22. 1 min read