Mishkat al-Masabih 94

ʿUbāda ibn al-Ṣāmit reported: I heard the Messenger of God say, ‘The first thing God created was the Pen. He said to it, “Write.” It asked, “What shall I write?” He said, “Write the decree: what has been and what will be forever.”’ Al-Tirmidhi transmitted it and said: ‘This is a strange report in its chain of transmission.’