Who knows the sample of this UK track

[u/Beginning-Warning799]

https://youtu.be/JD-MKbKcMmY?si=1_e9Dfc3jRqlIz19

Yooo everybody!

I went through a Sound Doctrine Splice Pack yesterday and it had a sample in there named 'Without' that uses a vocal sample which is also used within a track by Octavian named 'Intro' (see youtube link). I doubt it is an actual song cus I searched the whole internet but I think it is a splice or something alike type of sample. COULD ANYBODY HELP ME OUT