It is narrated from Sayyiduna Abu Hurayrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever intends to carry a deceased person should perform ablution (wudu)." (b) The Shaykh said: All the marfu' narrations in this chapter from Sayyiduna Abu Hurayrah (may Allah be pleased with him) are not strong, because some of their narrators are unknown and some are weak, and they are authentic as mawquf (his own statement).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 1448