Nahj al-Balāgha
Hadith 1973١٦. وَقَالَ (عليه السلام): تَذِلُّ الْأُمُورُ لِلْمَقَادِيرِ حَتَّى يَكُونَ الْحَتْفُ فِي التَّدْبِيرِ.
16. Amīr al-mu’minīn, peace be upon him, said: All matters are subject to destiny, so much so that sometimes death results from effort.