وَاَنۡزَلَ الَّذِيۡنَ ظَاهَرُوۡهُمۡ مِّنۡ اَهۡلِ الۡكِتٰبِ مِنۡ صَيَاصِيۡهِمۡ وَقَذَفَ فِىۡ قُلُوۡبِهِمُ الرُّعۡبَ فَرِيۡقًا تَقۡتُلُوۡنَ وَتَاۡسِرُوۡنَ فَرِيۡقًا(الأحزاب :26)
Waanzala allatheena thaharoohum min ahli alkitabi min sayaseehim waqathafa fee quloobihimu alrru'ba fareeqan taqtuloona watasiroona fareeqan
Sahih International:
And He brought down those who supported them among the People of the Scripture from their fortresses and cast terror into their hearts [so that] a party you killed, and you took captive a party.
هُوَ الَّذِىۡۤ اَخۡرَجَ الَّذِيۡنَ كَفَرُوۡا مِنۡ اَهۡلِ الۡكِتٰبِ مِنۡ دِيَارِهِمۡ لِاَوَّلِ الۡحَشۡرِؔؕ مَا ظَنَنۡـتُمۡ اَنۡ يَّخۡرُجُوۡا وَظَنُّوۡۤا اَنَّهُمۡ مَّانِعَتُهُمۡ حُصُوۡنُهُمۡ مِّنَ اللّٰهِ فَاَتٰٮهُمُ اللّٰهُ مِنۡ حَيۡثُ لَمۡ يَحۡتَسِبُوۡا وَقَذَفَ فِىۡ قُلُوۡبِهِمُ الرُّعۡبَ يُخۡرِبُوۡنَ بُيُوۡتَهُمۡ بِاَيۡدِيۡهِمۡ وَاَيۡدِى الۡمُؤۡمِنِيۡنَ فَاعۡتَبِـرُوۡا يٰۤاُولِى الۡاَبۡصَارِ(الحشر :2)
Huwa allathee akhraja allatheena kafaroo min ahli alkitabi min diyarihim liawwali alhashri ma thanantum an yakhrujoo wathannoo annahum mani'atuhum husoonuhum mina Allahi faatahumu Allahu min haythu lam yahtasiboo waqathafa fee quloobihimu alrru'ba yukhriboona buyootahum biaydeehim waaydee almumineena fai'tabiroo ya olee alabsari
Sahih International:
It is He who expelled the ones who disbelieved among the People of the Scripture from their homes at the first gathering. You did not think they would leave, and they thought that their fortresses would protect them from Allah ; but [the decree of] Allah came upon them from where they had not expected, and He cast terror into their hearts [so] they destroyed their houses by their [own] hands and the hands of the believers. So take warning, O people of vision.
Complete Indexing of Quran Topics
We have indexed and found 2 verses about or related to (including the word(s)) "Fortress".
For your information, the verses as described above: