The Prophet, may the mercy and blessings of God be upon him, said:
“Every religion has its characteristic, and the characteristic of Islam is modesty.” (al-Muwatta)
Modesty, in the sense of shyly protecting oneself with propriety from the lustful or envious gaze, means one takes care about how to express oneself in word and deed. One does not want others to look at one strangely or as if one is blameworthy. It encourages one to be proper in behavior and thought with other people, and with one’s relationship with God. The Prophet once said to his companions:
“Be bashful before God according to His right to modesty before Him”.
They said: “O Messenger of God, verily we are shy, praise be to God.”