Narrated by:Sa'sa'ah bin Mu'awiyah said
It was narrated that Sa'sa'ah bin Mu'awiyah said:"I met Abu Dharr and said: 'Tell me a Hadith.' He said: the Messenger of Allah said: There are no two Muslims, three of whose children die before reaching puberty, but Allah will forgive them by virtue of His mercy towards them."'
أَخْبَرَنَا إِسْمَاعِيلُ بْنُ مَسْعُودٍ، قَالَ حَدَّثَنَا بِشْرُ بْنُ الْمُفَضَّلِ، عَنْ يُونُسَ، عَنِ الْحَسَنِ، عَنْ صَعْصَعَةَ بْنِ مُعَاوِيَةَ، قَالَ لَقِيتُ أَبَا ذَرٍّ قُلْتُ حَدِّثْنِي . قَالَ نَعَمْ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَا مِنْ مُسْلِمَيْنِ يَمُوتُ بَيْنَهُمَا ثَلاَثَةُ أَوْلاَدٍ لَمْ يَبْلُغُوا الْحِنْثَ إِلاَّ غَفَرَ اللَّهُ لَهُمَا بِفَضْلِ رَحْمَتِهِ إِيَّاهُمْ " .
Nesai
The Book of Funerals • Hadith 1874