﴿ وَيَسْـَٔلُونَكَ عَنِ ٱلْمَحِيضِ ۖ قُلْ هُوَ أَذًۭى فَٱعْتَزِلُوا۟ ٱلنِّسَآءَ فِى ٱلْمَحِيضِ ۖ وَلَا تَقْرَبُوهُنَّ حَتَّىٰ يَطْهُرْنَ ۖ فَإِذَا تَطَهَّرْنَ فَأْتُوهُنَّ مِنْ حَيْثُ أَمَرَكُمُ ٱللَّهُ ۚ إِنَّ ٱللَّهَ يُحِبُّ ٱلتَّوَّٰبِينَ وَيُحِبُّ ٱلْمُتَطَهِّرِينَ ﴾

“AND THEY will ask thee about [woman's] monthly courses. Say: "It is a vulnerable condition. Keep, therefore, aloof from women during their monthly courses, and do not draw near unto them until they are cleansed; and when they are cleansed, go in unto them as God has bidden you to do." Verily, God loves those who turn unto Him in repentance and He loves those who keep themselves pure.”

Doing good works means acting with the Hereafter in mind. In the knowledge that there is an eternal side to life, which is more important than the temporal side, it is for eternity that we should strive. Should our actions on earth profit us in this life, but be harmful to our everlasting life, we shall have lived our lives in vain. What we do on earth will be judged after death. We should take care to ensure that our deeds measure up well on God’s scale of justice, for if they fail to do so, there is no way we can avoid His punishment.