The Book of Pilgrimage
15/74. Chapter:
A woman travelling with a Mahram for Hajj and other purposes
Sahih Muslim
وَحَدَّثَنَا ابْنُ أَبِي عُمَرَ، حَدَّثَنَا هِشَامٌ، - يَعْنِي ابْنَ سُلَيْمَانَ - الْمَخْزُومِيُّ عَنِ ابْنِ، جُرَيْجٍ بِهَذَا الإِسْنَادِ نَحْوَهُ وَلَمْ يَذْكُرْ " لاَ يَخْلُوَنَّ رَجُلٌ بِامْرَأَةٍ إِلاَّ وَمَعَهَا ذُو مَحْرَمٍ " .
Ibn Juraij narrated this hadith with the same chain of transmitters, but he made no mention of it: " No person (man) should be alone with a woman except when there is a Mahram with her."
Reference : Sahih Muslim 1341cIn-book reference : Book 15, Hadith 478USC-MSA web (English) reference : Book 7, Hadith 3112