Fasting is a shield.
Remember the good qualities of your dead, and refrain from mentioning their failings.
A good word is as a good tree, whose roots are firm and its branches reach to the sky… It yields its fruits at all times by the permission of its Lord. God thus sets forth similitudes for mankind, that they may be mindful. But the likeness of an evil word is that of an evil tree, uprooted, having no stability. God makes the believers steadfast with the Mighty Word in this life and the Hereafter; but God allows wrongdoers to stray. God does what He wills. - The Holy Qur'an