If he dies...

If he dies, being his first al- Hajj, before assuming the state of Ihram, his camel, supplies and things with him are applied to his Hajjahta al-Islam, if anything is left extra it is for his heirs, if there is no loan on him.’ I then asked, ‘What happens if it was an optional al-Hajj and he dies on the way before assuming the state of Ihram, who will have his camel, and things with him?’ He (the Imam) said, ‘All things belonging to him go to his heirs, unless there is loan on him which is paid on his behalf or if his will says to give something to someone, in which case it is paid from one-third of his legacy.’”

صحيح - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (17/163))