Narrated Aisha, Ummul Mu'minin:

The Apostle of Allah forbade to enter the hot baths. He then permitted men to enter them in lower garments.

Narrated Aisha, Ummul Mu'minin:

AbulMalih said: Some women of Syria came to Aisha. She asked them: From whom are you? They replied: From the people of Syria. She said: Perhaps you belong to the place where women enter hot baths (for washing ). The said: Yes. She said: I heard the Apostle of Allah say: If a woman puts off her clothes in a place other than her house, she tears the veil between her and Allah, the Exalted.

Narrated Abdullah ibn Amr ibn al-'As:

The Prophet said: After some time the lands of the non-Arabs will be conquered for you, and there you will find houses called hammamat (hot baths). so men should not enter them (to wash) except in lower garments, and forbid the women to enter them except a sick or one who is in a child-bed.

Narrated Ya'la:

The Apostle of Allah saw a man washing in a public place without a lower garment. So he mounted the pulpit, praised and extolled Allah and said: Allah is characterised by modesty and concealment. So when any of you washes, he should conceal himself.

Narrated Jarhad:

The Apostle of Allah sat with us and my thigh was uncovered. He said: Do you not know that thigh is a private part.

Narrated Ali ibn AbuTalib:

The Prophet said: Do not uncover you thigh, and do not look at the thigh of the living and the dead.

Narrated Mu'awiyah ibn Haydah:

I said: Apostle of Allah, from whom should we conceal our private parts and to whom can we show? He replied: conceal your private parts except from your wife and from whom your right hands possess (slave-girls).

I then asked: Apostle of Allah, (what should we do), if the people are assembled together?

He replied: If it is within your power that no one looks at it, then no one should look at it.

I then asked: Apostle of Allah if one of us is alone, (what should he do)?

He replied: Allah is more entitled than people that bashfulness should be shown to him.

Narrated AbuSa'id al-Khudri:

The Prophet said: A man should not look at the private parts of another man, and a woman should not look at the private parts of another woman. A man should not lie with another man without wearing lower garment under one cover; and a woman should not be lie with another woman without wearing lower garment under one cover.

Narrated AbuHurayrah:

The Prophet said: A man should not lie with another man and a woman should not lie with another woman without covering their private parts except a child or a father. He also mentioned a third thing which I forgot.