Divine destiny governs all matters
Nahj al-Balāgha|Volume 1|Book 3|Chapter 16
١٦. 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.