Musannaf Ibn Abi Shaybah

Yunus, may Allah have mercy on him, says that whenever Hazrat Husain, may Allah have mercy on him, mentioned Hazrat Umar, may Allah be pleased with him, he would say: By Allah, although he was not among the earliest to embrace Islam, nor was he among the most excellent in spending in the way of Allah, yet he surpassed people in his indifference to the world. And he was stern in matters of Allah’s religion. And he did not fear the blame of any blamer regarding Allah.