فَإِنْ كُنْتَ لَا تَسْتَطِيعُ دَفْعَ مَنِيَّتِي
فَدَعْنِي أُبَادِرْهَا بِمَا مَلَكَتْ يَدِي
Meaning: If you cannot ward off my death, leave me to take advantage of what I possess before death arrives.
Maniyyatī is the death allotted to the speaker, dafʿ denotes turning something away, and ubādirhā conveys acting first or hastening to meet a coming moment. The logic is conditional: the addressee cannot prevent death, so the speaker claims freedom to use his means now. He is expressing his own priorities, not claiming an actual escape from mortality.