Al-Walid bin Muslim says: Shayban Abu Mu'awiyah informed me, and he mentioned this same hadith in its meaning, in different words, and in it this was stated: "When you have finished the fifth washing, put camphor in the openings (ears) of the deceased."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنائز / 6766