Ameer-ul-Mu`mineen, Sayyiduna ‘Umar Farooq-e-A’zam رَضِیَ اللہُ تَعَالٰی عَنْہُ was declared to be the most superior person by the Beloved Rasool صَلَّى اللهُ تَعَالٰى عَلَيْهِ وَاٰلِهٖ وَسَلَّم after Sayyiduna Abu Bakr Siddeeq رَضِىَ اللهُ تَعَالٰی عَـنْهُ but he never felt proud of this, nor did he ever look down upon any Muslim, but he would consider other Muslims to be better than himself.
Allah indeed kind to whom He wishes. It happened that Abu Lulu Al- Fayruz, the Magian (the fire worshiper) and nonbeliever and had a roman origin, stabbed Umar (R.A.) while he was in the Fajr Salah (dawn prayer) with a dagger of two blades. He stabbed him three times, one of these below the naval. Hence, Umar (R.A.) fell down bleeding copiously.
He asked Abdul Rahman bin Awf (R.A.) to replace him to conclude the prayer. Abu Lulu withdrew with his dagger but kept stabbing whoever came his way in the mosque until he stabbed thirteen people out of which six died as a result of their injuries. Abdullah bin Awf (R.A.) threw his robe on him and when he realized that he was going to be overpowered, Abu Lulu stabbed himself to death (may Allah's curse be upon him).
Umar (R.A.), was taken to his house with blood gushing out from his wound. All of these occurred before sunrise.
Then, his soul was taken. This happened on 26 Dhul Hijjah, 23 AH (Wednesday 7th of November 644 AD). He was sixty-three years old and his era extended for ten years.
As per Umar's (R.A.) will, he was buried, with the permission of Aishah (R.A.), alongside Prophet Mohammad (S.A.W.) and caliph Abu Bakr (R.A.) in Masjid Al-Nabawi.