diff --git a/py-polars/polars/series/binary.py b/py-polars/polars/series/binary.py
index ad7ea1f4823c..9d9a4eb1955c 100644
--- a/py-polars/polars/series/binary.py
+++ b/py-polars/polars/series/binary.py
@@ -20,7 +20,7 @@ def __init__(self, series: Series):
         self._s: PySeries = series._s
 
     def contains(self, literal: IntoExpr) -> Series:
-        """
+        r"""
         Check if binaries in Series contain a binary substring.
 
         Parameters
@@ -32,6 +32,18 @@ def contains(self, literal: IntoExpr) -> Series:
         -------
         Series
             Series of data type :class:`Boolean`.
+
+        Examples
+        --------
+        >>> s = pl.Series("colors", [b"\x00\x00\x00", b"\xff\xff\x00", b"\x00\x00\xff"])
+        >>> s.bin.contains(b"\xff")
+        shape: (3,)
+        Series: 'colors' [bool]
+        [
+            false
+            true
+            true
+        ]
         """
 
     def ends_with(self, suffix: IntoExpr) -> Series: