It is narrated from Yunus bin Ubayd that Imam al-Hasan al-Basri (may Allah have mercy on him) did not consider a ritual bath (ghusl) obligatory upon the one who washes a deceased person, (that is, he did not hold) "that he should (himself) take a bath (because of washing the deceased)."
This athar (report) is narrated in the Musnad of Imam Abu Ya'la, and its chain up to al-Hasan al-Basri (may Allah have mercy on him) is sahih (authentic).
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب الجنائز / 798
Hadith Gradingمحدثین:إسناده صحيح
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :صحيح بالشاهد. » «انفرد به المصنف من هذا الطريق»