What Suffices for Hajjata al-Islam and What Does Not Suffice? (The following Chapter is best explained by fatwa).

14. It is narrated from him (narrator of previous Hadith) from Safwan from Hakam ibn Hakam who has said the following: “I once asked abu ‘Abd Allah عليه السلام, about a man who dies without performing al-Hajj and without a will to perform al-Hajj on his behalf. However, a certain one of his relatives, male or female, enables someone to perform al-Hajj on his behalf; if it is sufficient for his al-Hajj, or al-Hajj belongs to one who has enabled and the one who performs al-Hajj receives reward. He (the Imam) said, ‘If it is his first al-Hajj it is sufficient for both of them and the enabler receives reward.’”