Men half nude time(like swimming,staybeach,etc) in a place another men look his body.is it allowed or not.
Assalaam Alaikum wa rahmatullah,
Covering one's 'Awrah is obligatory according to a consensus of the Muslims. The woman's body is all 'Awrah, and there is a consensus that the buttocks and private parts of a man are his 'Awrah as well. But the correct scholarly opinion is that the 'Awrah for man is everything between his knee and navel.
It is reported that Muhammad bin Jahsh said that once, the Messenger of Allah (sallAllahu
Recorded by Ahmad in his Musnad, Al-Bukhari in disconnected form, and Al-Hakim in his Mustadrak It is also reported from Ibn 'Abbas, may Allaah be pleased with them, that the Prophet (sallAllaahu `alayhi wa sallam)said,
"The thigh is 'Awrah." (At-Tirmithi no. 2797 and Ahmad 1/275)
Recorded by At-Tirmizi and Ahmad with the wording:
"Allaah's Messenger (sallAllaahu `alayhi wa sallam) passed by a man whose thigh was exposed so he said:
"Cover your thigh, for a man's thigh is 'Awrah." (Ahmad 5/290 and Mustadrak of AJ-Hakim no. 4/180 no. 7361)
It was also reported from Jarhad Al-Aslami that he said, "Allaah's Messenger (sallAllahu
"Cover your thighs, for the thigh is 'Awrah." (At-Tirmithi no. 2798 and Ahmad no. 3/478)
Recorded by Malik in Al-Muwatta, Ahmad, Abu Dawud, and At-Tirmizi, who said it was Hasan.
These Hadeeths strengthen each other, so that they are raised to the level of being valid proofs.
May Allah Subhana wa ta’ala, send His blessings upon our Prophet Muhammad salaAllahu `alayhi wa sallam, on his family, and on his Companions. Ameen.