They sampled this from the Zoviet France track "Dybbuk" - skip at 16:01
https://youtu.be/PiGjkg3k650?t=961
Here the cloudline track in comparison:
https://www.youtube.com/watch?v=egbUv_hmVcE
I submitted this to WhoSampled.com, but they rejected it. Even though it's clearly from this song (and also, Ae are fans of Zoviet France).
Can someone post this on WATMM? I don't have an account there.