It is narrated from Sayyiduna Jarhad (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) saw him in the mosque with his thigh uncovered, while he was wearing a cloak, and he (peace and blessings be upon him) said: "Indeed, the thigh is part of the awrah (the area that must be covered)." This hadith is sahih al-isnad (its chain is authentic), but the two Shaykhs (Bukhari and Muslim) did not record it. Its supporting witness is the narration of Muhammad bin Jahsh.

It is narrated from Sayyiduna Muhammad bin Jahsh (may Allah be pleased with him); he said: The Messenger of Allah (peace and blessings be upon him) passed by, and I was with him (peace and blessings be upon him). He (peace and blessings be upon him) passed by Ma'mar (may Allah be pleased with him) while both his thighs were uncovered, and he (peace and blessings be upon him) said: "O Ma'mar, cover your thighs, for the thighs are awrah." Similar narrations from the Prophet (peace and blessings be upon him) on this subject have also been reported from Sayyiduna Ali bin Abi Talib and Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both).