Sayyidah Aishah (may Allah be pleased with her) said that the Messenger of Allah (peace and blessings be upon him) said: "The ritual bath is for five things: for major impurity, for cupping, on Friday, after washing a dead person, and from the water of the bathhouse." (b) In Sahih Muslim it is reported from Sayyidah Aishah (may Allah be pleased with her) that the Prophet (peace and blessings be upon him) said: "Ten things are part of the fitrah (natural disposition)." He (Muslim) did not record this previous hadith, and I think he left it out because of the criticism of some of the hadith masters (huffaz) regarding it. It has a supporting narration (shahid) from the hadith of Sayyiduna Abdullah bin Amr bin al-As (may Allah be pleased with them both), except that he did not mention taking a bath after washing a dead person.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الطهارة / 1431