Addressing al-Mogheera when he wanted to speak in support of Uthman

There was some exchange of words between ‘Uthmān ibn ‘Affān and Amīr al-mu’minīn when al-Mughīrah ibn al-Akhnas [1] said to ‘Uthmān that he would deal with Amīr al-mu’minīn on his behalf whereupon Amīr al-mu’minīn said to al-Mughīrah:

O son of the accursed and issueless, and of a tree which has neither root nor branch. Will you deal with me? By Allāh, Allāh will not grant victory to him whom you support, nor will he be able to stand up whom you raise. Get away from us. Allāh may keep you away from your purpose. Then do whatever you like. Allāh may not have mercy on you if you have pity on me.