Hadith 941
Abu Hurairah (May Allah be pleased with him) reported:
عن أبي هريرة رضي الله عنه عن النبي صلى الله عليه وسلمى الله عليه وسلم الله عليه وسلم الله عليه وسلم قال: "أسرعوا بالجنازة، فإن تك صالحة، فخير تقدمونها إليه، وإن تك سوي ذلك، فشر تضعونه عن رقابكم" ((متفق عليه)). ((وفي رواية لمسلم: "فخير تقدمونها عليه)).
I heard the Prophet (ﷺ) saying, "Hurry up with the dead body (for its burial), for if it is pious, you are speeding it to goodness and if it is otherwise, you are laying an evil off your necks." [Al-Bukhari and Muslim].
In plain words
The Prophet urged not delaying a burial: if the deceased was righteous you are speeding them toward good, and if not you are setting down a burden from your shoulders.
Reference : Riyad as-Salihin 941 In-book reference : Book 6, Hadith 48