The first thing Allah created was the Pen. He commanded it to write. It said: My Lord, what shall I write? He said: Write down what has been ordained for all things until the establishment of the Hour

عن عبادة بن الصامت رضي الله عنه قال: يا بُنَيَّ، إنك لن تجد طعم الإيمان حتى تعلم أن ما أصابك لم يكن ليخطئك، وما أخطأك لم يكن ليصيبك، سمعت رسول الله صلى الله عليه وسلم يقول: «إن أول ما خلق الله القلم، فقال له: اكتب. فقال: رب، وماذا أكتب؟ قال: اكتب مقادير كل شيء حتى تقوم الساعة». يا بني سمعت رسول الله صلى الله عليه وسلم يقول: «من مات على غير هذا فليس مني». وفي رواية لأحمد: «إن أول ما خلق الله تعالى القلم، فقال له: اكتب، فجرى في تلك الساعة بما هو كائن إلى يوم القيامة». وفي رواية لابن وهب قال رسول الله صلى الله عليه وسلم : «فمن لم يؤمن بالقدر خيره وشره أحرقه الله بالنار».

‘Ubādah ibn As-Sāmit (may Allah be pleased with him) said to his son: "O Son, you will not taste true faith until you know that whatever has come to you would never have missed you, and that whatever has missed you would never have come to you. I heard the Messenger of Allah (may Allah's peace and blessings be upon him) say: 'The first thing Allah created was the Pen. He commanded it to write. It said: 'My Lord, what shall I write?' He said: 'Write down what has been ordained for all things until the establishment of the Hour.'" O Son, I heard the Messenger of Allah (may Allah's peace and blessings be upon him) say: 'Whoever dies believing otherwise does not belong to me.'" In a narration by Imām Ahmad: "Verily, the first thing Allah, the Almighty, created was the Pen. He said to it: ‘Write.’ So in that very hour it wrote down all what was to occur up to the Day of Judgment." In a narration by Ibn Wahb, the Messenger of Allah (may Allah's peace and blessings be upon him) said: "So, whoever disbelieved in fate, the good and the bad thereof, Allah will burn him with the Hellfire.”

Source · Ibn Wahb in Al-Qadar - Narrated by At-Termedhy - Narrated by Abu Daoud - Narrated by Ahmad

From the Hadith Encyclopedia (hadeethenc.com).