Majma al-Zawaid 12578 — The emergence of the Beast

This report is narrated from Sayyiduna Hudhayfah bin Asid (may Allah be pleased with him); the narrator says: I think he narrated it as a marfu' hadith. (The Prophet (peace and blessings be upon him) said:) "The Beast of the Earth will emerge from the greatest mosque. While the people are there, the earth will move, and while they are in that state, it will split open." Ibn Uyaynah says: It will emerge when the ruler of the time sets off from Muzdalifah; those who go ahead of the pilgrims have been appointed for this very reason, so that they may inform the people that the Beast of the Earth has not yet emerged.
Al-Tabarani recorded it in al-Mu'jam al-Awsat, and its narrators are thiqat (trustworthy).

It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "When the sun rises from its west (the direction of sunset), Iblis will fall down in prostration and call out loudly: 'O my God! Command me, and I am ready to prostrate to whomever You will!'" (He (peace and blessings be upon him)) said: "Then his devils/followers will gather around him and say: 'O our master! What is this humility and pleading?' He will say: 'I only asked my Lord, the Mighty and Majestic, for respite until the known time (the appointed time), and this is that known time (which has arrived).'" He said: "Then the Beast of the Earth (the creature of the earth) will emerge from a crevice in (the hill of) Safa, and it will place its first step in Antioch. Then it will come to Iblis and slap him."
Al-Tabarani (may Allah have mercy on him) recorded it in al-Mu'jam al-Kabir and al-Mu'jam al-Awsat. Its chain contains a narrator named Ishaq bin Ibrahim bin Zibriq, who is da'if (weak).