It is narrated from Sayyiduna Anas (may Allah be pleased with him), the Messenger of Allah (peace and blessings be upon him) said: The Day of Judgment will not be established until saying "Allah, Allah" ceases on the earth.
Hadith Takhrij«اسناده صحيح علي شرط الشيخين، أخرجه الترمذي: 2207 ، (انظر مسند أحمد ترقيم الرسالة: 13082 ترقیم بيت الأفكار الدولية: 13113»
Brief Explanation
Benefits: … Imam Nawawi rahimahullah said: The meaning of this hadith is that the Day of Judgment will be established upon the worst of creation. Imam Taybi said: Its meaning is that when the name of Allah Ta'ala will no longer be mentioned and His worship will no longer be performed, (at that time the Day of Judgment will be established).
The intent is that monotheism (tawhid) and those who affirm monotheism will come to an end, and upon the face of the earth there will remain only polytheism (shirk) and evil.