Translation
(1) Purification (Kitab Al-Taharah)
كتاب الطهارة
(131) Chapter: Performing Ghusl For The Friday Prayer
(130) باب فِي الْغُسْلِ يَوْمَ الْجُمُعَةِ
Sunan Abi Dawud 350 
Explaining the meaning of the words ghassala and ightasala (that occur in tradition 345) Sa'id (b. 'Abd al-'Aziz) said:
One should wash one's head and body well (And not that one should make one's wife wash).
حَدَّثَنَا مُحَمَّدُ بْنُ الْوَلِيدِ الدِّمَشْقِيُّ، حَدَّثَنَا أَبُو مُسْهِرٍ، عَنْ سَعِيدِ بْنِ عَبْدِ الْعَزِيزِ، فِي ‏ "‏ غَسَّلَ وَاغْتَسَلَ ‏"‏ ‏.‏ قَالَ قَالَ سَعِيدٌ غَسَّلَ رَأْسَهُ وَغَسَلَ جَسَدَهُ ‏.‏
Grade :  Sahih Maqtu' (Al-Albani) صحيح مقطوع  (الألباني)حكم :
Reference : Sunan Abi Dawud 350
In-book reference : Book 1, Hadith 350
English translation : Book 1, Hadith 350