diff --git a/discord/ext/commands/core.py b/discord/ext/commands/core.py
index c185eacd3..7b57c7e4f 100644
--- a/discord/ext/commands/core.py
+++ b/discord/ext/commands/core.py
@@ -2304,7 +2304,9 @@ def is_nsfw() -> Check[Any]:
 
     def pred(ctx: Context[BotT]) -> bool:
         ch = ctx.channel
-        if ctx.guild is None or (isinstance(ch, (discord.TextChannel, discord.Thread)) and ch.is_nsfw()):
+        if ctx.guild is None or (
+            isinstance(ch, (discord.TextChannel, discord.Thread, discord.VoiceChannel)) and ch.is_nsfw()
+        ):
             return True
         raise NSFWChannelRequired(ch)  # type: ignore
 
diff --git a/discord/state.py b/discord/state.py
index 4e982c68e..6cec02477 100644
--- a/discord/state.py
+++ b/discord/state.py
@@ -2571,7 +2571,7 @@ class ConnectionState:
     # parse_guild_application_commands_update = parse_nothing  # Grabbed directly in command iterators
 
     def _get_reaction_user(self, channel: MessageableChannel, user_id: int) -> Optional[Union[User, Member]]:
-        if isinstance(channel, TextChannel):
+        if isinstance(channel, (TextChannel, Thread, VoiceChannel)):
             return channel.guild.get_member(user_id)
         return self.get_user(user_id)