(81) بَابُ مَنْ مَاتَ لَهُ سَقْطٌ
He said that the Messenger of Allah, may Allah bless him and grant himpeace, said, "Who do you reckon to be the childless among you?" They said,"They are those who do not have any children." No," he said, "The childlessare those who have not sent any of their children ahead (i.e. none of theirchildren have died)."
Reference: Al-Adab Al-Mufrad 154
In-book reference: Book 8, Hadith 12
English translation: Book 8, Hadith 154