Many from the first generations.*
ثُلَّةٌ مِنَ الأَوَّلينَ
sullatum minal awwaleen
*56:13-40 People who believe and nourish their souls through worshiping God alone are destined for the High Heaven. The contemporary followers of each messenger invariably suffer persecution from the traditionalists and adherents of the corrupted religion. Thus, they have a special place reserved for them in the High Heaven. All people who die before the age of 40 go to the Lower Heaven, at least (46:15).