The Messenger of Allah ﷺ said, "The first whom the Truth will shake hands with is Umar, the first whom He will greet with peace, and the first whose hand He will take to lead him into Paradise."
حدثنا إسمعيل بن محمد الطلحي أنبأنا داود بن عطاء المديني عن صالح بن كيسان عن ابن شهاب عن سعيد بن المسيب
قال رسول الله ﷺ أول من يصافحه الحق عمر وأول من يسلم عليه وأول من يأخذ بيده فيدخله الجنة
No references are available.
[Its chain of transmission is very daif] Ibn Abu Asim recorded it in Sunnah, no. 1245, from Ismail Talhi through this route, and Busiri deemed it daif, saying about Dawud bin Ataa, "They have unanimously agreed on his weakness."