Messenger of Allah ﷺ was asked about the children of (Mushrikeen) pagans. The Prophet ﷺ replied, "Since Allah created them, He knows what sort of deeds they would have done." (Using translation from Bukhārī 1383)
سُئِلَ رَسُولُ اللهِ ﷺ عَنْ أَوْلَادِ الْمُشْرِكِينَ فَقَالَ «اللهُ أَعْلَمُ بِمَا كَانُوا عَامِلِينَ إِذْ خَلَقَهُمْ»