Prophet Muhammed (Peace be
upon him) said in one Hadeeth:
"Each religion has a
morality and the morality of Islam is haya' (bashfulness)."
He (PBUH) also said in
another Hadeeth:
"Bashfulness is from
belief and belief is in Aj-Jannah (Paradise)."
Furthermore, the Messenger
of God (Peace be upon him) said:
"Bashfulness and
belief are fully associated together if one is lifted the other follows
suit."
The mother of the
believers, A'isha said: "I used to enter the room where the Messenger of
Allah (Peace be upon him) and my father were later buried in without having my
garment on me, saying it is only my husband and my father". But when Umar (May
Allah be pleased with him) was later buried in (the same place), I did not
enter the room except that I had my garment on being shy from Umar (May Allah
be pleased with him)." The Hijab fits the natural bashfulness which is a part of
the nature of women.