1 files changed, 3 insertions, 11 deletions
diff --git a/activerecord/lib/active_record/validations/associated.rb b/activerecord/lib/active_record/validations/associated.rb
index 3a783aeb00..7af0352a31 100644
--- a/activerecord/lib/active_record/validations/associated.rb
+++ b/activerecord/lib/active_record/validations/associated.rb
@@ -17,15 +17,7 @@ module ActiveRecord
       #     validates_associated :pages, :library
       #   end
       #
-      # Warning: If, after the above definition, you then wrote:
-      #
-      #   class Page < ActiveRecord::Base
-      #     belongs_to :book
-      #
-      #     validates_associated :book
-      #   end
-      #
-      # this would specify a circular dependency and cause infinite recursion.
+      # WARNING: This validation must not be used on both ends of an association. Doing so will lead to a circular dependency and cause infinite recursion.
       #
       # NOTE: This validation will not fail if the association hasn't been assigned. If you want to
       # ensure that the association is both present and guaranteed to be valid, you also need to
@@ -37,10 +29,10 @@ module ActiveRecord
       #   validation contexts by default (+nil+), other options are <tt>:create</tt>
       #   and <tt>:update</tt>.
       # * <tt>:if</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   occur (e.g. <tt>:if => :allow_validation</tt>, or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>).  The
+      #   occur (e.g. <tt>:if => :allow_validation</tt>, or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>). The
       #   method, proc or string should return or evaluate to a true or false value.
       # * <tt>:unless</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   not occur (e.g. <tt>:unless => :skip_validation</tt>, or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>).  The
+      #   not occur (e.g. <tt>:unless => :skip_validation</tt>, or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>). The
       #   method, proc or string should return or evaluate to a true or false value.
       def validates_associated(*attr_names)
         validates_with AssociatedValidator, _merge_attributes(attr_names)