With all the shuffling that’s going on at the moment, it could well have changed. What I do know is that it used to give 20 Brilliant Souls. Maybe it still does.
However, as 1,000 souls can be converted into 200 Amanita Sherry, which can in turn be turned into 40 Brilliant Souls, that may not be the best use of souls. But as I said - it may have been changed for this very reason.