Throw exception if column is not exists in unique rule

src/Illuminate/Validation/Concerns/ValidatesAttributes.php

@@ -20,6 +20,7 @@
 use Illuminate\Support\Arr;
 use Illuminate\Support\Exceptions\MathException;
 use Illuminate\Support\Facades\Date;
+use Illuminate\Support\Facades\Schema;
 use Illuminate\Support\Str;
 use Illuminate\Validation\Rules\Exists;
 use Illuminate\Validation\Rules\Unique;
@@ -959,6 +960,21 @@ public function validateUnique($attribute, $value, $parameters)
         // assume that this column to be verified shares the attribute's name.
         $column = $this->getQueryColumn($parameters, $attribute);
 
+        $model = new class extends Model {};
+        $model->setTable($table);
+
+        // Get columns of $table
+        $availableColumns = Schema::getColumnListing($table);
+        $availableQualifyColumns = $model->qualifyColumns($availableColumns);
+
+        $columns = array_merge($availableColumns, $availableQualifyColumns);
+
+        if (!in_array($column, $columns)) {
+            $columnsList = implode(',', $columns);
+            $errorMsg = sprintf("The [%s] column doesnt exists in [%s] the table. Available columns: {$columnsList}", $column, $table);
+            throw new InvalidArgumentException($errorMsg);
+        }
+
         $id = null;
 
         if (isset($parameters[2])) {

tests/Integration/Validation/ValidatorTest.php

@@ -44,6 +44,9 @@ public function testUnique()
 
         $validator = $this->getValidator(['first_name' => 'Taylor'], ['first_name' => 'unique:'.User::class]);
         $this->assertTrue($validator->passes());
+
+        $validator = $this->getValidator(['first_name' => 'Taylor'], ['first_name' => 'unique:'.User::class.',no_column']);
+        $this->assertThrows(fn() => $validator->passes(), \InvalidArgumentException::class);
     }
 
     public function testUniqueWithCustomModelKey()