My source about souls does not come from Judea-Christian-Muslim scriptures.
My information came to me when I was searching for God within myself. He was able to touch my soul and reveal many things in this process.
I was not satisfied with these religions, scriptures and religious institutions because I found them imperfect and did not address many of the questions I had. Experiencing God's answers was a joyful experience. It was a freeing experience. It was a loving experience. I discovered and felt these truths from within where God resides.
As in the matter of God and souls there are very little proofs and all I have for you now is my faith.
All I can suggest to you is to approach God without fear and ask for the truth. When you are ready he will answer. But I am not sure about proofs and references. It will be a great experience pleasing both you and God.