Sayyiduna Abu Hurairah (may Allah be pleased with him) narrated: A woman came to the service of the Prophet Muhammad (peace be upon him) with her son. She said: O Messenger of Allah! I fear for him, as I have already sent three children ahead (i.e., they have died). The Messenger of Allah (peace be upon him) said: "You have indeed built a very strong barrier against Hellfire."
Hadith Referenceمسند اسحاق بن راهويه / كتاب البر و الصلة / 762
Hadith Takhrij«مسلم ، كتاب البروالصلة ، باب فضل من يموت له ولد ، رقم : 2636 . سنن نسائي ، رقم : 1877 . مسند احمد : رقم : 9427 .»