diff --git a/src/wp-includes/comment-template.php b/src/wp-includes/comment-template.php
index a22cce4d84..f19264b29f 100644
--- a/src/wp-includes/comment-template.php
+++ b/src/wp-includes/comment-template.php
@@ -870,30 +870,35 @@ function get_comments_number( $post_id = 0 ) {
  * Displays the language string for the number of comments the current post has.
  *
  * @since 0.71
+ * @since 5.4.0 Added the `$post_id` parameter.
  *
- * @param string $zero       Optional. Text for no comments. Default false.
- * @param string $one        Optional. Text for one comment. Default false.
- * @param string $more       Optional. Text for more than one comment. Default false.
- * @param string $deprecated Not used.
+ * @param string      $zero       Optional. Text for no comments. Default false.
+ * @param string      $one        Optional. Text for one comment. Default false.
+ * @param string      $more       Optional. Text for more than one comment. Default false.
+ * @param string      $deprecated Not used.
+ * @param int|WP_Post $post_id    Optional. Post ID or WP_Post object. Default is the global `$post`.
  */
-function comments_number( $zero = false, $one = false, $more = false, $deprecated = '' ) {
+function comments_number( $zero = false, $one = false, $more = false, $deprecated = '', $post_id = 0 ) {
 	if ( ! empty( $deprecated ) ) {
 		_deprecated_argument( __FUNCTION__, '1.3.0' );
 	}
-	echo get_comments_number_text( $zero, $one, $more );
+	echo get_comments_number_text( $zero, $one, $more, $post_id );
 }
 
 /**
  * Displays the language string for the number of comments the current post has.
  *
  * @since 4.0.0
+ * @since 5.4.0 Added the `$post_id` parameter to allow using the function outside of the loop.
  *
- * @param string $zero Optional. Text for no comments. Default false.
- * @param string $one  Optional. Text for one comment. Default false.
- * @param string $more Optional. Text for more than one comment. Default false.
+ * @param string      $zero    Optional. Text for no comments. Default false.
+ * @param string      $one     Optional. Text for one comment. Default false.
+ * @param string      $more    Optional. Text for more than one comment. Default false.
+ * @param int|WP_Post $post_id Optional. Post ID or WP_Post object. Default is the global `$post`.
+ * @return string Language string for the number of comments a post has.
  */
-function get_comments_number_text( $zero = false, $one = false, $more = false ) {
-	$number = get_comments_number();
+function get_comments_number_text( $zero = false, $one = false, $more = false, $post_id = 0 ) {
+	$number = get_comments_number( $post_id );
 
 	if ( $number > 1 ) {
 		if ( false === $more ) {
diff --git a/tests/phpunit/tests/comment/template.php b/tests/phpunit/tests/comment/template.php
index b1a7ce5b2a..186829093a 100644
--- a/tests/phpunit/tests/comment/template.php
+++ b/tests/phpunit/tests/comment/template.php
@@ -30,6 +30,18 @@ class Tests_Comment_Template extends WP_UnitTestCase {
 		$this->assertEquals( 12, get_comments_number() );
 	}
 
+	/**
+	 * @ticket 48772
+	 */
+	function test_get_comments_number_text_with_post_id() {
+		$post_id = $this->factory->post->create();
+		$this->factory->comment->create_post_comments( $post_id, 6 );
+
+		$comments_number_text = get_comments_number_text( false, false, false, $post_id );
+
+		$this->assertEquals( sprintf( _n( '%s Comment', '%s Comments', 6 ), '6' ), $comments_number_text );
+	}
+
 	/**
 	 * @ticket 13651
 	 */