As regarding your statement about envy...

As regarding your statement about envy, then Adam was envied, and we are his descendants who also are envious.' ‘Umar then said: ‘Impossible, impossible; your hearts, O descendants of Hashim, have become filled with envy that can never dissipate.' I therefore said: ‘Wait, O commander of the faithful, do not attribute this to the hearts of those whom Allah has purified with a perfect purification.'"[^1] He argued with him in another incident, asking: "How did you leave your cousin?" Ibn ‘Abbas said he thought ‘Umar meant ‘Abdullah ibn Ja’far; so, he answered: "I left him in the company of his friends." He said: "I did not mean him; I meant the greatest among you, ." Ibn ‘Abbas said: "I left him exiled, irrigating while reciting the Qur'an." ‘Umar said: "O ‘Abdullah!

I implore you not to be shy but tell me if he is still concerned about the issue of caliphate." He answered in the affirmative.

Then ‘Umar asked: "Does he claim that the Messenger of Allah (pbuh) has selected him for it?" Ibn ‘Abbas answered: "Yes, indeed; moreover, I even asked my father if there was any statement made by the Messenger of Allah regarding selecting him for the caliphate, and my father informed me that that was the truth." ‘Umar then said: "The Messenger of Allah held him in very high esteem through his speeches and actions in a way that left no argument nor excuse for anyone,[^2] and he kept testing the nation regarding him for some time;[^3] nay, even when he was sick [prior to his demise], he wished to nominate him for it, but it was I who stopped him."[^4] In a third dialogue between both men, ‘Umar said: "O Ibn ‘Abbas!

I can see how wronged your friend [‘Ali (as)] is." Ibn ‘Abbas said: "O commander of the faithful, then affect justice on his behalf." Ibn ‘Abbas said: "But ‘Umar pulled his hand from mine and went away whispering to himself for a good while. Then he stopped; so, I rejoined him, and he said to me: ‘O Ibn ‘Abbas!