Abu Darda' reported Allah's Apostle (ﷺ) as saying:If anyone learns by heart the first ten verses of the Surah al-Kahf, he will be protected from the Dajjal

This hadith has been transmitted by Qatada with the same chain of transmitters. But Shu'ba (one of the narrators) said:At the end of Surah al-Kahf, but Hammam said: At the beginning of Surah al-Kahf