لَا تَقُومُ السَّاعَةُ حَتَّى يُبْعَثَ دَجَّالُونَ كَذَّابُونَ قَرِيبٌ مِنْ ثَلَاثِينَ كُلُّهُمْ يَزْعُمُ أَنَّهُ رَسُولُ اللَّهِ
The Hour will not be established until approximately thirty lying imposters emerge. Each one of them would claim that he is a “messenger of Allah".         
Prophet Muhammad  (may Allah bless him and grant him peace)