(An-Naml) 27 : 52
فَتِلْكَ بُيُوتُهُمْ خَاوِيَةً بِمَا ظَلَمُوا ۗ إِنَّ فِي ذَٰلِكَ لَآيَةً لِقَوْمٍ يَعْلَمُونَ
Those are their houses, desolate because of their wrongdoing; indeed, in that there is a Sign for people having Knowledge.
Those who testify the Three-Time-Knowledge Adhikr are the people having Knowledge. Adhikr is the Safeguard against all calamities, disasters, diseases, and Hellfire. So whoever holdfasts Adhikr, he did holdfast Lord and is guided into the Straightpath as explained in verse 5: 48. See explanation 7: 84; 16: 99; 22: 8 and 27: 44.