Prayer is of great significance in the life of a Muslim. So, he should regularly perform it and fulfill its Sunnahs and pillars in the required manner, and he should perform a lot of voluntary prayers, for they compensate for any shortcomings in the obligatory ones. He should also keep a portion of goodness for his house by offering supererogatory prayers therein. This Hadīth contains Prophetic guidance and education, as the Prophet (may Allah's peace and blessings be upon him) instructed us: When a Muslim performs the obligatory prayer in the mosque, "he should leave a portion of his prayer for his house," i.e., he should offer some of them in his house. This refers to supererogatory prayers. This is because prayer at home is more hidden and farther away from show-off, and so that the house may be blessed on account of that, and mercy and angels descend in it, and the devil runs away from it. The Prophet (may Allah's peace and blessings be upon him) informed that Allah puts goodness in the house of this performer of supererogatory prayers on account of his prayers; this goodness encompasses his wife and children and brings blessing to their sustenance and life spans and an increase in their guidance and piety, and the house is filled with dhikr and worship, and the angels descend to supplicate for the inhabitants of the house and ask for Allah's forgiveness for them..