The Source and the Presence

I'm talking with a person and he is saying that as of Lucifer, when Lucifer rippe dopen the Source Wall and the Source helped him to see the universe, it was retconned as no longer being an aspect of Presence....

I told him that Vertigo isn't canon to the main DCU but I'm still trying to figure out his logic here.

Can anyone get me a scan of some more recent issue of comics, around or after that issue of Lucifer, that says the Source ia an aspect of Presence?

The only time the Source was mentioned in Lucifer was when Lucifer went past the Source Wall and said something like "There's something called the Source here, but that's not what I'm looking for."