Yahya related to me from Muhammad ibn alMunkadir that Rabia ibnAbdullah ibn alHadir told him that he had seen Umar ibn al-Khattableading people in front of the bier at the funeral of Zaynab bintJahsh.
USC-MSA web (English) reference: Book 16, Hadith 9
Arabic reference: Book 16, Hadith 531