The Messenger of Allah (may Allah's peace and blessings be upon him) used to say the following supplication: "O Allah, I seek refuge with You from the punishment of the grave, the punishment of the Fire, the trials of life and death, and the trial of the Anti-Christ." [Sahih/Authentic]

كان رسول الله -صلى الله عليه وسلم- يدعو: اللَّهُمَّ إني أعوذ بك من عذاب القبر، وعذاب النار، ومن فتنة الْمَحْيَا وَالْمَمَاتِ، ومن فتنة الْمَسِيحِ الدَّجَّالِ». [صحيح.] - [متفق عليه.]