Mahabharata 3.16.18

सुरक्षितं सुगुप्तं च सर्वायुधसमन्वितम्तत्पुरं भरतश्रेष्ठ यथेन्द्रभवनं तथा

surakṣitaṃ suguptaṃ ca sarvāyudhasamanvitamtatpuraṃ bharataśreṣṭha yathendrabhavanaṃ tathā

Our plain-language meaning of this verse is waiting for scholar review.