Sayyiduna Samurah bin Jundub (may Allah be pleased with him) said that the Messenger of Allah (peace and blessings be upon him) said: "Soon, before the Hour is established, you will see great things that you will find objectionable; you will say: We are ruined! We had been told of this. So when you see that, remember Allah Almighty, and know that these are the first signs of the Hour," until he said: "Soon you will see mountains moving from their places before the true Blast comes." And he (peace and blessings be upon him) used to say to us: "The Hour will not be established until a stone points out the hiding place of a Jew whom a Muslim man is pursuing; he will appear in front of him and then hide, and the stone will say: O servant of Allah, here is the one you are looking for."
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 7052