Sahih al-Bukhari 791

It is related that 'A'isha, the wife of the Prophet, reported that the Messenger of Allah, may Allah bless him and grant him peace, used to make supplication in the prayer: "O Allah, I seek refuge with You from the punishment of the grave and I seek refuge with You from the trial of the False Messiah (Dajjal) and I seek refuge with you from the trials of life and the trial of death. O Allah, I seek refuge with You from wrong action and debt." Someone said to him, "How often you seek refuge from debt!" He said, "When someone is in debt, when he speaks, he lies and when he makes a promise, he breaks it." It is related that 'A'isha said, "I heard the Messenger of Allah, may Allah bless him and grant him peace, seek refuge in his prayer from the trial of the Dajjal."