It is narrated from Hazrat Anas (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: When Hazrat Musa (peace be upon him) intended to dive into the river water, he would not remove his clothes until he had concealed his private parts in the water.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 13764
Hadith Gradingحکم دارالسلام:إسناده ضعيف لضعف على بن زيد بن جدعان، ويشهد لمعناه حديث أبى هريرة السالف برقم: 9091