It means...
It means, if one has done several good deeds and has also committed some sins, both remain at their place. It is not that all sins wipe out good deeds, but apostasy indeed does. Yes, it is possible that some of the good goes in vain due to some sins. For example, if someone annoys his mother, it results in the nullifying of his previous good deeds. But his prayer and fast etc. do not go away. Whoever does god sees his good and whoever does evil shall see his evil. One does not remove another.
What happened when they obstructed the burial of Imam Hasan beside the Prophet’s grave? Imam Husain complained from the depths of his heart regarding oppression and injustice pertaining to the behavior of Ayesha. He said, “Umar brought the body of Abu Bakr at the grave of my grandfather and hit the holy ground with a pick-axe.” Thus they showed a serious disrespect. God says in the Holy Qur’an: Do not raise your voice over the voice of the Holy Prophet. You came and hit a pickaxe over his grave.
You dug a grave to bury Abu Bakr by the side of the Prophet. Thereafter Umar also made a will that he also be buried there.[^1] He too showed such disrespect. They are too small too hitting a pickaxe on the grave of the Holy Prophet. Of course, I have said this in the face of what the Sunnis say. They say that being buried by the side of the Holy Prophet is enough to show their greatness. This is a disgrace, not gracefulness. Disrespect has been shown to the holy grave.
(49:3) Piety of the heart and the body Piety sometimes belongs to the physical organs and sometimes it is in the heart. Importance is for the piety of the heart. The piety of the body and physical organs is temporary and always in danger. Its value is less compared to the piety of heart.
For instance, it is the outward (physical) piety because of which most of the people observe Ramadhan fasts under the influence of what their parents told them; that if you do not fast purposely you will have to observe fasts for sixty consecutive days. If one eats openly during Ramadhan on the first instance, he should be given 20 lashes.