al-Sharif al-Radi (d. 406 AH) · Thaqalayn library edition, reproduced verbatim
٢٩٦. وَقَالَ (عليه السلام) لِرَجُلٍ رَآهُ يَسْعَى عَلَى عَدُوٍّ لَهُ بِمَا فِيهِ إِضْرَارٌ بِنَفْسِهِ: إنَّمَا أَنْتَ كَالطَّاعِنِ نَفْسَهُ لِيَقْتُلَ رِدْفَهُ.
296. Amīr al-mu’minīn, peace be upon him, saw a man busy against his enemy with what was harmful to himself too, so he said: You are like one who pierces a spear through himself in order to kill the person sitting behind him.
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