Sahih al-Bukhari 3609
Sahih al-Bukhari · Book 61: Virtues and Merits of the Prophet (pbuh) and his Companions · The signs of Prophethood in Islam
Narrated Abu Huraira:
حَدَّثَنِي عَبْدُ اللَّهِ بْنُ مُحَمَّدٍ ، حَدَّثَنَا عَبْدُ الرَّزَّاقِ ، أَخْبَرَنَا مَعْمَرٌ ، عَنْ هَمَّامٍ ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " لاَ تَقُومُ السَّاعَةُ حَتَّى يَقْتَتِلَ فِئَتَانِ، فَيَكُونَ بَيْنَهُمَا مَقْتَلَةٌ عَظِيمَةٌ، دَعْوَاهُمَا وَاحِدَةٌ، وَلاَ تَقُومُ السَّاعَةُ حَتَّى يُبْعَثَ دَجَّالُونَ كَذَّابُونَ قَرِيبًا مِنْ ثَلاَثِينَ، كُلُّهُمْ يَزْعُمُ أَنَّهُ رَسُولُ اللَّهِ " .
The Prophet (ﷺ) said, "The Hour will not be established till there is a war between two groups among whom there will be a great number of casualties, though the claims (or religion) of both of them will be one and the same. And the Hour will not be established till there appear about thirty liars, all of whom will be claiming to be the messengers of Allah. "