सपादचर्मकोशैर्वा हस्तिभिः सौप्तिकं दद्यात् ॥ कZ_१०.३.२० ॥
sapādacarmakośair vā hastibhiḥ sauptikaṃ dadyāt
Or, using elephants fitted with foot-protecting leather-cases, one should deliver a night-slaying/night-attack (sauptika).
To enable stealth and prevent injury on rough ground, improving surprise and reliability in night operations.