diff --git a/rules-tests/Php73/Rector/FuncCall/RegexDashEscapeRector/Fixture/skip_three_backslash.php.inc b/rules-tests/Php73/Rector/FuncCall/RegexDashEscapeRector/Fixture/skip_three_backslash.php.inc
new file mode 100644
index 000000000000..3afaea2a6bfe
--- /dev/null
+++ b/rules-tests/Php73/Rector/FuncCall/RegexDashEscapeRector/Fixture/skip_three_backslash.php.inc
@@ -0,0 +1,11 @@
+<?php
+
+namespace Rector\Tests\Php73\Rector\FuncCall\RegexDashEscapeRector\Fixture;
+
+class SkipThreeBackslash
+{
+    public function run($text)
+    {
+        preg_match("#\([\w<>=\/\\\,:.\-\s\+]+\)#", $text, $matches);
+    }
+}
diff --git a/rules/Downgrade72/Rector/FuncCall/DowngradeStreamIsattyRector.php b/rules/Downgrade72/Rector/FuncCall/DowngradeStreamIsattyRector.php
index bed201834444..6210ece584c1 100644
--- a/rules/Downgrade72/Rector/FuncCall/DowngradeStreamIsattyRector.php
+++ b/rules/Downgrade72/Rector/FuncCall/DowngradeStreamIsattyRector.php
@@ -135,15 +135,15 @@ private function createIf(Expr $expr): If_
         return $if;
     }
 
-    private function createClosure($node): Closure
+    private function createClosure(FuncCall $funcCall): Closure
     {
-        $if = $this->createIf($node->args[0]->value);
+        $if = $this->createIf($funcCall->args[0]->value);
 
         $function = new Closure();
         $function->params[] = new Param(new Variable('stream'));
         $function->stmts[] = $if;
 
-        $posixIsatty = $this->nodeFactory->createFuncCall('posix_isatty', [$node->args[0]->value]);
+        $posixIsatty = $this->nodeFactory->createFuncCall('posix_isatty', [$funcCall->args[0]->value]);
         $function->stmts[] = new Return_(new ErrorSuppress($posixIsatty));
         return $function;
     }
diff --git a/rules/Php73/Rector/FuncCall/RegexDashEscapeRector.php b/rules/Php73/Rector/FuncCall/RegexDashEscapeRector.php
index 921c977a07ac..39762c23c8d3 100644
--- a/rules/Php73/Rector/FuncCall/RegexDashEscapeRector.php
+++ b/rules/Php73/Rector/FuncCall/RegexDashEscapeRector.php
@@ -21,6 +21,15 @@
  */
 final class RegexDashEscapeRector extends AbstractRector
 {
+
+    /**
+     * @var string
+     * @see https://regex101.com/r/iQbGgZ/1
+     *
+     * Use {2} as detected only 2 after $this->regexPatternArgumentManipulator->matchCallArgumentWithRegexPattern() call
+     */
+    private const THREE_BACKSLASH_FOR_ESCAPE_NEXT_REGEX = '#(?<=[^\\\\])\\\\{2}(?=[^\\\\])#';
+
     /**
      * @var string
      * @see https://regex101.com/r/YgVJFp/1
@@ -77,6 +86,10 @@ public function refactor(Node $node): ?Node
         }
 
         foreach ($regexArguments as $regexArgument) {
+            if (Strings::match($regexArgument->value, self::THREE_BACKSLASH_FOR_ESCAPE_NEXT_REGEX)) {
+                continue;
+            }
+
             $this->escapeStringNode($regexArgument);
         }