diff --git a/discord/abc.py b/discord/abc.py
index ed621b925..d01b40fcf 100644
--- a/discord/abc.py
+++ b/discord/abc.py
@@ -145,8 +145,6 @@ class User(Snowflake, Protocol):
         The user's username.
     discriminator: :class:`str`
         The user's discriminator.
-    avatar: :class:`~discord.Asset`
-        The avatar asset the user has.
     bot: :class:`bool`
         If the user is a bot account.
     """
@@ -155,7 +153,6 @@ class User(Snowflake, Protocol):
 
     name: str
     discriminator: str
-    avatar: Asset
     bot: bool
 
     @property
@@ -168,6 +165,11 @@ class User(Snowflake, Protocol):
         """:class:`str`: Returns a string that allows you to mention the given user."""
         raise NotImplementedError
 
+    @property
+    def avatar(self) -> Optional[Asset]:
+        """Optional[:class:`~discord.Asset`]: Returns an Asset that represents the user's avatar, if present."""
+        raise NotImplementedError
+
 
 @runtime_checkable
 class PrivateChannel(Snowflake, Protocol):