Nullus constabularius distringat aliquem militem ad dandum denarios pro custodia castri, si facere voluerit custodiam illam in propria persona sua, vel per alium probum hominem, si ipse eam facere non possit propter rationabilem causam; et si nos duxerimus vel miserimus eum in exercitum, erit quietus de custodia, secundum quantitatem temporis quo per nos fuerit in exercitu.
No constable is to distrain any knight to give money instead of performing castle-guard, if he is willing to perform that guard in person, or, if he is unable to do it for a satisfactory reason, through another reliable man. And if we have led or sent him in the army, he is to be quit of castle-guard in proportion to the time he is in the army at our behest.
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