It is narrated from Imaam Muhammad Al-Baaqir Radiyallahu 'Anhu that Rasulullah Sallallahu 'Alayhi Wasallam passed away on Monday. This day and the day of Tuesday was spent in preparation for the burial. Rasulullah Sallallahu 'Alayhi Wasallam was buried on that night. (The night between Tuesday and Wednesday) Sufyaan who is a narrator of this hadith says:
''Only this has been mentioned in the narration of Imaam Baaqir Radiyallahu 'Anhu''. In other narrations it is stated that in the later portion of the night the sound of spades were heard.
English reference: Book 53, Hadith 377
Arabic reference: Book 54, Hadith 394