ENOfficial
'Amr ibn Shu'ayb reported from his father that his grandfather said, "I heard the Prophet, may Allah bless him and grant him peace, say, 'O Allah, I seek refuge with You from the trial of the Dajjal and I seek refuge with You from the trial of the Fire.'"
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا يَحْيَى بْنُ بُكَيْرٍ، قَالَ: حَدَّثَنَا اللَّيْثُ، عَنْ يَزِيدَ بْنِ الْهَادِ، عَنْ عَمْرِو بْنِ شُعَيْبٍ، عَنْ أَبِيهِ، عَنْ جَدِّهِ قَالَ: سَمِعْتُ النَّبِيَّ صلى الله عليه وسلم يَقُولُ: اللَّهُمَّ إِنِّي أَعُوذُ بِكَ مِنْ فِتْنَةِ الْمَسِيحِ الدَّجَّالِ، وَأَعُوذُ بِكَ مِنْ فِتْنَةِ النَّارِ.
sunnah.com