ADHIKR

(Mu'amin) 40 : 30
وَقَالَ الَّذِي آمَنَ يَا قَوْمِ إِنِّي أَخَافُ عَلَيْكُمْ مِثْلَ يَوْمِ الْأَحْزَابِ

And the believer said: Oh my people! I fear upon you just like a Day of the Confederates.