حَدَّثَنَا عَبْدُ اللهِ بْنُ أَبِي الأَسْوَدِ، قَالَ: حَدَّثَنَا زَكَرِيَّا بْنُ عُمَارَةَ الأَنْصَارِيُّ، قَالَ: حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ صُهَيْبٍ، عَنْ أَنَسِ بْنِ مَالِكٍ
عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: مَنْ مَاتَ لَهُ ثَلَاثَةٌ لَمْ يَبْلُغُوا الْحِنْثَ، أَدْخَلَهُ اللَّهُ وَإِيَّاهُمْ بِفَضْلِ رَحْمَتِهِ الْجَنَّةَ
The Prophet (sallallahu alayhi wa sallam), may Allah bless him and grant him peace, said, “If someone has three children die before they reach puberty, Allah will admit him and them to the Garden by virtue of His mercy.”
Al-Adab Al-Mufrad 151, Book 8, Children's Death, Hadith 9. 1 min read