It is narrated from Hazrat Utbah (may Allah be pleased with him) that he heard the Prophet (peace and blessings be upon him) say: "Any Muslim whose three minor children die, they will meet him at all eight gates of Paradise, so that he may enter Paradise through whichever gate he wishes."
Hadith Referenceمسند احمد / مسند الشاميين / 17639
Hadith Gradingحکم دارالسلام:صحيح لغيره، وهذا إسناد حسن