>>40654620 (OP)The account of Solomon's death disproves that. Solomon commands djinn to build a temple bound by his ring but dies before it's complete. His body is held upright by his staff after his death but the djinn continue to slave away until his staff, eaten by termites, fails and Solomon collapses - revealing they don't have knowledge of the unseen.
> They didn't even know if Solomon was alive let alone what he was thinking."When We decreed Solomon’s death, nothing indicated to the ˹subjected˺ jinn that he was dead except the termites eating away his staff.1 So when he collapsed, the jinn realized that if they had ˹really˺ known the unseen, they would not have remained in ˹such˺ humiliating servitude." Surah Saba 34:14