They assumed Ihram for performing Hajj but a fire took place, which prevented them from continuing their Hajj

Q: I traveled with my whole family to Makkah Al-Mukarramah for Hajj. We were 15 individuals; two of us have not attained maturity, and the rest are of full age. We arrived in Makkah on the Day of Tarwiyah (8th of Dhul-Hijjah). Some of us went to Al-Haram (The Sacred Mosque in Makkah) for Tawaf (circumambulation of the Ka`bah) and Sa`y (going between Safa and Marwah during Hajj and `Umrah), and the rest stayed in Mina on the night of Tarwiyah. We were all in Mina on the Day of Tarwiyah. Your Eminence surely knows about the fire that flamed up in Mina on the Day of Tarwiyah and consumed our pavilion and all our luggage, and forced us to climb to the mountaintops, and when the fire was put out we returned to our pavilion which was entirely consumed by fire. Some of my family suffered from suffocation which made it too difficult for them to complete the rituals of Hajj. Because of this catastrophe and suffering that withheld us on Day of Tarwiyah and before we stood in `Arafah, we decided not to complete the rituals of Hajj and instead we left off for our homes and took off our garments of Ihram (clothing worn during the ritual state for Hajj and `Umrah) with the hope that In sha’a-Allah (if Allah wills) we would perform Hajj during the next year. I would like Your Eminence to answer me whether I have to offer a sacrifice or what should I do? May Allah reward you with the best!

A: Whoever among you failed to continue offering the rituals of Hajj because of the hindrance mentioned, the ruling of Muhsar (pilgrim prevented from completing Hajj or `Umrah) is applied to him or her and whoever necessarily accompanies them; namely, each person has to offer Fidyah (ransom) meeting the same conditions for an Udhiyah (sacrificial animal offered by non-pilgrims) or one-seventh of a camel or a cow, and perform Tahallul (removal of the ritual state of Hajj and `Umrah). (Part No. 10; Page No. 388) A sacrifice should be slaughtered in Makkah and given out to the poor of the Haram (all areas within the Sacred Sanctuary of Makkah). Furthermore, the Hajj has to be made up as soon as possible for anyone who had not performed Hajj before and this was their first time.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.