Hadith 505450
Chapter 16: Burials - كتاب الجنائز
وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، أَنَّهُ قَالَ صُلِّيَ عَلَى عُمَرَ بْنِ الْخَطَّابِ فِي الْمَسْجِدِ .
Yahya related to me from Malik from Nafi that Abdullah ibn Umar said, "The prayer over Umar ibn al-Khattab was done in the mosque."
Reference Muwatta Malik 505450
USC-MSA web (English) reference : Book 16, Hadith 23