(Asshuara’) 26 : 89
إِلَّا مَنْ أَتَى اللَّهَ بِقَلْبٍ سَلِيمٍ
“Except the one who comes to Lord Allah with a peaceful heart".
The one who transformed his Jinn soulmate into a believer with Adhikr will only die as a true Muslim (the one who submitted wholly to Lord) as explained in verse 3: 101-102. See explanation 13: 28 and 16: 89.