Narrated Abdullah bin Kab bin Malik al-Ansari: An expedition of the Ansar was operating in Persia with their leader. Umar used to send expeditions by turns every year, but he neglected them. When the expired, the people of expedition appointed on the frontier came back. He (Umar) took serious action against them and threatened them, though they were the Companions of the Messenger of Allah صلی اللہ علیہ وسلم . They said: Umar you neglected us, and abandoned the practice for which the Messenger of Allah صلی اللہ علیہ وسلم commanded to send the detachments by turns.

Narrated Umar ibn al-Khattab: A son of Adi ibn Adi al-Kindi said that Umar ibn Abdul Aziz wrote (to his governors): If anyone asks about the places where spoils (fay) should be spent, that should be done in accordance with the decision made by Umar ibn al-Khattab (Allah be pleased with him). The believers considered him to be just, according to the saying of the Prophet صلی اللہ علیہ وسلم : Allah has placed truth upon Umar's tongue and heart. He fixed stipends for Muslims, and provided protection for the people of other religions by levying jizyah (poll-tax) on them, deducting no fifth from it, nor taking it as booty.

Narrated Abu Dharr: I heard the Messenger of Allah صلی اللہ علیہ وسلم say: Allah, the Exalted, has placed truth on Umar's tongue and he speaks it.