Yahya related to me from Malik from more than one reliable sourcethat Sad ibn Abi Waqqas and Said ibn Zayd ibn Amr ibn Nufayl died atal-Aqiq and were carried to Madina and buried there. (IT)
USC-MSA web (English) reference: Book 16, Hadith 31 (IT)
Arabic reference (IT): Book 16, Hadith 553 (IT)