Historical Rules · 1 June 2014
Rule 112.11
Official source text from the 1 June 2014 Rules release
Effects can stop an object from having a specified ability. These effects say that the object “can’t have” that ability. If the object has that ability, it loses it. It’s also impossible for an effect to add that ability to the object. If a resolving spell or ability tries to create a continuous effect that would add the specified ability to such an object, that continuous effect is not created, although that resolving spell or ability can still create other continuous effects. Continuous effects created by static abilities that would add the specified ability won’t apply to that object.