بِسُمْرٍ مِنْ قَنَا الْخَطِّيِّ لُدْنٍ ذَوَابِلَ أَوْ بِبِيضٍ يَخْتَلِينَا
With supple, brown Khattī spears, or with bright white swords that cut sharply.
Sumr is the plural of asmar and describes the brownish spears. Qanā al-Khaṭṭī refers to a recognized type or association of lance. Ludn dhawābil suggests flexibility and resilience, not useless weakness.
Bīḍ refers to bright, gleaming swords. The attention to colour, material and flexibility makes the weapons perceptible; it is more expressive than a vague reference to “arms.”