Mahabharata 7.159.23
श्रान्ता भवन्तो निद्रान्धाः सर्व एव सवाहनाःतमसा चावृते सैन्ये रजसा बहुलेन च
śrāntā bhavanto nidrāndhāḥ sarva eva savāhanāḥtamasā cāvṛte sainye rajasā bahulena ca
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book