Sulpicius Severus on Military Hardship

But when the emperors ordered that the sons of veterans be enrolled in the military, he was captured and put in chains after his father informed against him (his father looked askance at his blessed activities), and he was tangled up in military oaths and remained content with only a single servant as his companion.

sed cum edictum esset a regibus, ut veteranorum filii ad militiam scriberentur, prodente patre, qui felicibus eius actibus invidebat, cum esset annorum quindecim, captus et catenatus sacramentis militaribus implicatus est, uno tantum servo comite contentus.

—Sulpicius Severus, Vita Sancti Martini 2.5