Valmiki Ramayana 7.32.56
अर्जुनस्य गदा सा तु पात्यमाना ऽहितोरसि ।काञ्चनाभं नभश्चक्रे विद्युत्सौदामिनी यथा॥
arjunasya gadā sā tu pātyamānā 'hitorasi |kāñcanābhaṃ nabhaścakre vidyutsaudāminī yathā ||
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book