Hadith 6:100
Ghundar narrated to us, from Sa'id, from Qatadah, from al-Hasan and Sa'id ibn al-Musayyib, that they both said: Regarding the deceased, he is to be given wudu like his wudu for prayer.
حدثنا غندر عن سعيد عن قتادة عن الحسن وسعيد بن المسيب انهما قالا في الميت يوضأ وضوءه للصلاة