Silsilat al-Ahadith al-Sahihah

Sayyiduna Muawiyah bin Qurrah narrates from his father Qurrah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "When corruption appears among the people of Sham, then there will be no good left among you. A group from my Ummah will always be helped; whoever tries to disgrace them will not be able to harm them until the Hour is established."