diff --git a/ci/code_checks.sh b/ci/code_checks.sh
index 47a2cf93a4f89..e60e6cec9d89a 100755
--- a/ci/code_checks.sh
+++ b/ci/code_checks.sh
@@ -1882,10 +1882,6 @@ if [[ -z "$CHECK" || "$CHECK" == "docstrings" ]]; then
 
     MSG='Partially validate docstrings (RT03)' ;  echo $MSG
     $BASE_DIR/scripts/validate_docstrings.py --format=actions --errors=RT03 --ignore_functions \
-        pandas.CategoricalIndex.set_categories\
-        pandas.DataFrame.astype\
-        pandas.DataFrame.at_time\
-        pandas.DataFrame.ewm\
         pandas.DataFrame.expanding\
         pandas.DataFrame.filter\
         pandas.DataFrame.first_valid_index\
diff --git a/pandas/core/generic.py b/pandas/core/generic.py
index 9424e421fd85f..f1af779e00232 100644
--- a/pandas/core/generic.py
+++ b/pandas/core/generic.py
@@ -6197,6 +6197,7 @@ def astype(
         Returns
         -------
         same type as caller
+            The pandas object casted to the specified ``dtype``.
 
         See Also
         --------
@@ -8675,6 +8676,7 @@ def at_time(self, time, asof: bool = False, axis: Axis | None = None) -> Self:
         Returns
         -------
         Series or DataFrame
+            The values with the specified time.
 
         Raises
         ------
diff --git a/pandas/core/window/ewm.py b/pandas/core/window/ewm.py
index 9b21a23b1aefe..b2855ff1f4048 100644
--- a/pandas/core/window/ewm.py
+++ b/pandas/core/window/ewm.py
@@ -226,6 +226,8 @@ class ExponentialMovingWindow(BaseWindow):
     Returns
     -------
     pandas.api.typing.ExponentialMovingWindow
+        An instance of ExponentialMovingWindow for further exponentially weighted (EW)
+        calculations, e.g. using the ``mean`` method.
 
     See Also
     --------