Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: If three minor children of a Muslim husband and wife pass away, they will be a strong fortress for them against Hell. Someone asked: O Messenger of Allah! What if there are two children? He (peace and blessings be upon him) said: Even if there are two. Sayyiduna Abu Dharr (may Allah be pleased with him) said: O Messenger of Allah! I have only sent two? He (peace and blessings be upon him) said: Even if there are two. The leader of the reciters, Abu al-Mundhir, Sayyiduna Ubayy bin Ka'b (may Allah be pleased with him) said: Only one of my children has passed away? He was replied: Even if it is one child. He (peace and blessings be upon him) said: This reward is given only when patience is observed at the onset of the calamity.