It is narrated from Sayyiduna Ali (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) once washed each part of the body three times while performing ablution.
Hadith Referenceمسند احمد / مسند الخلفاء الراشدين / 1351
Hadith Gradingحکم دارالسلام:إسناده حسن ، وانظر ما قبله