رِيَاضُ الصَّالِحِينَ
Riyad as-Salihin 1629
The Book of the Prohibited actions
Prohibition of Meeting a non-Mahram Woman in Seclusion
وَعَنِ ابْنِ عَبَّاسٍ رَضِيَ اللَّهُ عَنْهُمَا أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّه عَلَيْهِ وَسلم قَالَ: لَا يَخْلُوَنَّ أَحَدُكُمْ بِامْرَأَةٍ إِلاَّ مَعَ ذِي مَحْرَمٍ ((مُتَّفَقٌ عَلَيْهِ)).
Ibn Abbas (May Allah be pleased with them) said: The Messenger of Allah (ﷺ) said, "No one of you should meet a woman in privacy unless she is accompanied by a Mahram (i.e., a relative within the prohibited degrees)." [Al-Bukhari and Muslim].
Riyad as-Salihin, 1629