If a Hajj Pilgrim is prevented (from completing the Rites) after entering Ihram

Question :

If a Muslim decides to perform Hajj and after entering Ihram he is unable to perform his Hajj, what is he required to do?

Answer:

If someone is prevented from completing the Hajj, after having entered Ihram, due to sickness or something else, it is permissible to remove the Ihram after slaughtering a sacrificial animal and then shaving his head or cutting his hair. This is due to the Saying of Allâh:
"And perform properly (i.e., all the ceremonies according to the ways of Prophet Muhammad ﷺ), the Hajj and Umrah (i.e., the pilgrimage to Makkah) for Allâh. But if you are prevented (from completing Hajj or 'Umrah), sacrifice a Hady (animal, i.e., a sheep, a cow or a camel) such as you can afford, and do not shave your heads until the Hady reaches the place of sacrifice."

This is also because when the Prophet ﷺ was prevented from entering Makkah on the day of Al-Hudaibiyyah, he slaughtered his sacrificial animal, shaved his head and removed his Ihram, and he commanded his Companions to do the same. However, if the person who is prevented said when he assumed Ihram: "If something prevents me, then my place of removing Ihram is wherever You (Allâh) stop me," he removes his Ihram and nothing is due on him. He is not required to sacrifice an animal or anything else. This is due to what is confirmed in the two Sahihs from 'A'ishah that Dhuba'ah bint Az-Zubair bin 'Abdul-Muttalib said: "O Messenger of Allâh, verily, I want to perform Hajj but I am ill." So, the Prophet ﷺ said to her:
"Perform Hajj and set a condition (saying): My place of removing Ihram is where You (Allah) stop me.'

Source:
Ash-Shaykh Ibn Baz
Fatawa Islamiyah, Vol. 4 Pages 263-264