What is the ruling on calling the people of Paradise “Jahannamiyyun” (people of Hellfire)?

Question : He says that those who come out of the Fire, from among the people of Paradise, are called the Jahannamiyyun. He says: We see this as a standard. And we are given nicknames. This burdens their consciences. How can the people of Paradise give them nicknames? What do we say?

Answer : We say, first, that they are called that to remind them of the favor of Allah. And they are pleased with this. And even if it were to displease them one day, it will be erased; it will be erased, because there is nothing in Paradise that ever causes distress.