I heard the Messenger of Allah ﷺ say, "There is no Muslim who loses three children who have not yet reached the age of accountability except that they will meet him at the eight gates of Paradise, and he may enter through whichever one he wishes."
سمعت رسول الله ﷺ يقول: ما من مسلم يموت له ثلاثة من الولد لم يبلغوا الحنث، إلا تلقوه من أبواب الجنة الثمانية، من أيها شاء دخل.
Ibn Majah (1604) narrated it from Muhammad bin Abdullah bin Numayr, who said, "Ishaq bin Sulayman narrated to us, who said, 'Hurayz bin Uthman narrated to us, from Shurahbil bin Shafah, who said, "Utba bin Abdul-Sulami met me,"'" and he related it. Ahmad (17639) narrated it through another route from Shurahbil bin Shafah Rahbi with a similar chain. Its chain is hasan because of Shurahbil bin Shafah, for his hadith is hasan. The discussion of this is set out at length in the chapter on funerals.Similar in meaning is what has been narrated from Utba bin Abdul-Sulami, who was one of the companions of the Prophet ﷺ. He said, the Messenger of Allah ﷺ said, and he related a long hadith about the categories of being killed, in which it states,"And a believing man who has burdened himself with sins and wrongdoings, then strives with himself and his wealth in the path of Allah, until when he meets the enemy he fights until he is killed, then his sins and wrongdoings are completely wiped away, for the sword erases sins, and he is admitted through whichever gate of Paradise he wishes, for it has eight gates, while Hell has seven gates, one lower than another."Ahmad (17657), Tayalisi (1363), Tabarani in Kabir (17/125–126), and Ibn Hibban (4663) all narrated it, all of them through the route of Safwan bin Amr Saksaki, from Abu Muthanna Amlouki, from Utba bin Abdul-Sulami, and he related it. In its chain is Abu Muthanna Amlouki, who is Damdam Amlouki. I have found no confirmation of his reliability except that of Ajli and Ibn Hibban, who counted him among the trustworthy narrators.