It is narrated from Hazrat Hudhaifa (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: "Follow the two men who will come after me, that is, Abu Bakr and Umar (may Allah be pleased with them)."
Hadith Referenceمسند احمد / مسند الأنصار رضي الله عنهم / 23245
Hadith Gradingحکم دارالسلام:حديث حسن بطرقه وشواهده ، وإسناده منقطع بين عبدالملك بن عمير وربعي بن حراش