Kautilya's Arthashastra 7.3.25

7.3.25

ekenānyatra yātavyaṃ svayaṃ daṇḍena vety ayam /
adṛṣṭapuruṣaḥ saṃdhir daṇḍamukhyātmarakṣaṇaḥ //

Agreement made on the condition that the king himself or some one else should march with the army to some place, as required, is peace termed adrishtapurusha, ‘peace with no specified person to serve’; and it is conducive to the safety of the king and the chiefs of his army.