Historical Rules · 1 September 2023
Rule 704.5p
Official source text from the 1 September 2023 Rules release
If a battle or creature is attached to an object or player, it becomes unattached and remains on the battlefield. Similarly, if any nonbattle, noncreature permanent that’s neither an Aura, an Equipment, nor a Fortification is attached to an object or player, it becomes unattached and remains on the battlefield.