وَيَوْمَ دَخَلْتُ الْخِدْرَ خِدْرَ عُنَيْزَةَ
فَقَالَتْ لَكَ الْوَيْلَاتُ إِنَّكَ مُرْجِلِي
And on the day when I entered the enclosed litter of ʿUnayzah, she said: “Woe to you! You are going to leave me on foot.”
Al-khidr denotes an enclosed or curtained space; here it is the woman’s screened litter or its inner compartment. Khidra ʿUnayzah specifies the same place by identifying its occupant. Directly reported speech turns the recollection into a dramatic exchange.
Murjilī reflects her fear that his added weight will burden her mount and force her to walk. The complaint connects directly with the next verse, in which the litter is said to tilt.