Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
abudawud:350Muḥammad b. al-Walīd al-Dimashqī > Abū Mushir

One should wash one's head and body well (And not that one should make one's wife wash).  

أبو داود:٣٥٠حَدَّثَنَا مُحَمَّدُ بْنُ الْوَلِيدِ الدِّمَشْقِيُّ حَدَّثَنَا أَبُو مُسْهِرٍ عَنْ سَعِيدِ بْنِ عَبْدِ الْعَزِيزِ فِي غَسَّلَ وَاغْتَسَلَ قَالَ قَالَ

سَعِيدٌ غَسَّلَ رَأْسَهُ وَغَسَلَ جَسَدَهُ