Sayyiduna Hudhayfah (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) said: "Whoever washes a deceased person should take a bath (ghusl)."
Al-Tabarani recorded it in al-Mu'jam al-Awsat as a narration of Abu Ishaq al-Sabi'i from his father, and I have not found anyone mentioning his father.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الجنائز / 4077
Hadith Gradingمحدثین:إسناده ضعیف
Hadith Takhrij«أخرجه مسند أحمد برقم: 17680، وأخرجه المعجم الأوسط للطبراني برقم: 2781»