Is the book "Kitab al-Ruh" authored by Ibn Qayyim al-Jawziyya, and what is the evidence for that?

The book "Kitab Ar-Ruh" (The Book of the Soul) is undoubtedly by Ibn al-Qayyim. Scholars have extensively detailed the proofs for this, among the most prominent of which are:

1. Ibn al-Qayyim himself mentioned it in his book "Jala' al-Afham" and attributed it to himself. 2. His student, Ibn Rajab, quoted from it in his book "Ahwal al-Qubur" and attributed it to him. 3. Biographers of Ibn al-Qayyim consistently attributed the book to him, including Al-Hafiz Ibn Hajar. 4. The book contains discussions and issues that Ibn al-Qayyim addressed in his other books with the same style and opinion.