لَا يَخْلُوَنَّ رَجُلٌ بِامْرَأَةٍ، وَلَا تُسَافِرَنَّ امْرَأَةٌ إِلَّا وَمَعَهَا مَحْرَمٌ
A man must not be alone in seclusion with a woman, and a woman must not travel unless accompanied by a mahram.
Source: البخاري ومسلم
لَا يَخْلُوَنَّ expresses an emphatic prohibition concerning seclusion. رَجُلٌ بِامْرَأَةٍ means “a man with a woman,” while مَحْرَمٌ is a close relative permanently prohibited in marriage. إِلَّا introduces an exception: “unless.”
The narration presents two distinct cautions: private seclusion and travel. The lesson highlights personal boundaries and protection. Detailed application to different travel circumstances and legal conditions requires a separate juristic discussion and should not be flattened into one beginner-level claim.