Rabi'ah bin Abdullah bin al-Hudayr said that he saw Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) sending the people ahead in front of the funeral of Sayyidah Zaynab bint Jahsh (may Allah be pleased with her).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنائز / 6860