It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that the funeral prayer of Sayyiduna Umar (may Allah be pleased with him) was offered in the mosque, and the funeral prayer was led by Sayyiduna Suhayb (may Allah be pleased with him).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنائز / 7039