Musannaf Ibn Abi Shayba 37:197

Mu'tamir ibn Sulayman narrated to us, from al-Rukayn, from his father, from Ibn Mas'ud, that he used to say: "It was said to us during the caliphate of Umar: 'There will be calamities and calamities, and it is sufficient for a man, when he sees a matter that he dislikes, that Allah knows that he is averse to it.'"