Mukhtasar Muslim

It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, said to the women of the Ansar: "Whichever of you has three sons who die, and she (the woman) remains patient for the sake of Allah's pleasure, she will enter Paradise." A woman asked, "O Messenger of Allah! What if two children die?" He, peace and blessings be upon him, replied, "Even two." In another chain of narration, it is reported in a marfu‘ form that the Messenger of Allah, peace and blessings be upon him, said: "A Muslim whose three children die will not be touched by the fire of Hell, except to fulfill an oath (that is, Allah the Exalted has said: 'There is none among you but will pass over it [Hell],' so he will pass over Hell, but will not be punished in any other way)."