Valmiki Ramayana Ayodhya Kanda Sarga 9 Shloka 46
Original Shlokaतवेदं स्थगु यद्दीर्घं रथघोणमिवायतम्।।2.9.46।। मतयः क्षत्रविद्याश्च मायाश्चात्र वसन्ति ते।
1 source checked for this shloka
आयतम् wide, रथघोणमिव like the hub of a chariot, दीर्घम् long, तव your, यत् which, इदम् this, स्थगु hump, अत्र here, ते your, मतय: thoughts, क्षत्रविद्या: skills of a kshatriya, माया: च also magic powers, वसन्ति are residing.
Your clever thoughts, magic powers and also the skills of kshatriyas are stored in your huge hump which is as wide as the hub of a chariot wheel.