17:85
وَيَسْـَٔلُونَكَ عَنِ ٱلرُّوحِ ۖ قُلِ ٱلرُّوحُ مِنْ أَمْرِ رَبِّى وَمَآ أُوتِيتُم مِّنَ ٱلْعِلْمِ إِلَّا قَلِيلًا
wayasalūnaka ʿani l-rūḥi quli l-rūḥu min amri rabbī wamā ūtītum mina l-ʿil'mi illā qalīlan
[Prophet], they ask you about the Spirit. Say, ‘The Spirit is part of my Lord’s domain. You have only been given a little knowledge.’
And they ask you (O Muhammad صلى الله عليه و سلم) concerning the Rûh (the Spirit); Say: "The Rûh (the Spirit) is one of the things, the knowledge of which is only with my Lord. And of knowledge, you (mankind) have been given only a little."