Musannaf Ibn Abi Shaybah 40446 — Reports on the tribulation

It is narrated from Ibrahim bin Maysarah that he said: I said to Tawus: Is Umar bin Abd al-Aziz the Mahdi? He said: He was indeed mahdi (that is, rightly guided), but he was not the Mahdi. For when the Mahdi comes, the doer of good will be increased in his goodness, and the sinner will repent of his sin; he will spend wealth freely, be severe with the officials and show mercy to the poor.