He has apportioned all things according to a precise, irrevocable measure—one that none of His creatures in the heavens or on the earth can nullify, overturn, remove, alter, diminish, or augment.
The servant must believe with full conviction that Allah knew what has been and what will never be through His eternal knowledge, with which He has always been and will always be described. He encompassed every single matter with His knowledge before it occurred, and holding this belief is indispensable. He—exalted is He—knew it and decreed it: “He created everything and determined it with precise determination” (al-Furqān 25:2).
Nothing is chaotic or without order; everything is arranged and governed by Allah’s decree, predestination, and written record. Allah is far above disorder and frivolity. No one can act so as to change what Allah has decreed; there is no repeller of His decree and no reviser of His judgment: “Allah judges, and none can overturn His judgment” (al-Raʿd 13:41). Thus, no one can lessen anything of Allah’s decree, nor can anyone ever add to it; the matter has been decided and concluded by Him.
When a Muslim embraces this belief, it spares him many doubts and illusions. Yet this does not mean that he should rely on decree and predestination and abandon action (1); he is commanded to work, to seek provision, and to employ the available means. This is from