Mahabharata 7.68.21
प्रादुश्चक्रे ततः पार्थः शाक्रमस्त्रं महारथःतस्मादासन्सहस्राणि शराणां नतपर्वणाम्
prāduścakre tataḥ pārthaḥ śākramastraṃ mahārathaḥtasmādāsansahasrāṇi śarāṇāṃ nataparvaṇām
Our plain-language meaning of this verse is waiting for scholar review.