It is narrated from Hazrat Abu Hurairah (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Whoever gives a bath to a deceased person should also perform ghusl (ritual bath).
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 7770
Hadith Gradingحکم دارالسلام:إسناده ضعيف لجهالة أبي إسحاق.