It is narrated from Sayyiduna Ali (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) departed first, then Sayyiduna Abu Bakr Siddiq (may Allah be pleased with him) departed second, and Sayyiduna Umar Farooq (may Allah be pleased with him) departed third. After that, trials surrounded us; now Allah will do whatever He wills.
Hadith Referenceمسند احمد / مسند الخلفاء الراشدين / 1256
Hadith Gradingحکم دارالسلام:حسن لغيره، و هذا إسناد ضعيف لضعف شريك و جهالة عمر و بن سفيان الثقفي