The Essence of Islam – Volume V — Page 153
Earthquakes and Wars 153 an earthquake but some other dire calamity evoking the spectacle of doomsday, the like of which would not have been witnessed by this age, and which would bring about great destruction of life and property. . However, if no such extraordinary sign appears and people do not openly reform themselves, then I shall prove to be a liar. [Brāhīn-e-Aḥmadiyya, part 5, Rūḥānī Khazā'in, vol. 21, p. 151, footnote]