Mishkat al-Masabih 19 Jihad كتاب الجهاد 68

وَعَنْ حَسْنَاءَ بِنْتِ مُعَاوِيَةَ قَالَتْ: حَدَّثَنَا عَمِّي قَالَ: قَلْتُ لِلنَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: مَنْ فِي الْجَنَّةِ؟ قَالَ: «النَّبِيُّ فِي الْجَنَّةِ وَالشَّهِيدُ فِي الْجَنَّةِ وَالْمَوْلُودُ فِي الْجَنَّةِ وَالْوَئِيدُ فِي الْجنَّة» . رَوَاهُ أَبُو دَاوُد

Hasna’ daughter of Mu’awiya said her paternal uncle told her he had asked the Prophet who were in paradise, and he replied, “Prophets are in paradise, martyrs are in paradise, infants are in paradise, and children buried alive are in paradise.” Abu Dawud transmitted it.