(80) بَابُ فَضْلِ مَنْ مَاتَ لَهُ الْوَلَدُ
Abu Hurayra reported that the Messenger of Allah, may Allah bless himand grant him peace, said, "No Muslim who has had three of his children dieyoung will enter the Fire, except to expiate an unfulfilled oath."
Reference: Al-Adab Al-Mufrad 143
In-book reference: Book 8, Hadith 1
English translation: Book 8, Hadith 143