diff --git a/src/corelib/Qt6CoreMacros.cmake b/src/corelib/Qt6CoreMacros.cmake
index 620d893abd9..e58ebd5d2be 100644
--- a/src/corelib/Qt6CoreMacros.cmake
+++ b/src/corelib/Qt6CoreMacros.cmake
@@ -410,6 +410,18 @@ endif()
 # qt6_add_big_resources(outfiles inputfile ... )
 
 function(qt6_add_big_resources outfiles )
+    if(CMAKE_GENERATOR STREQUAL "Xcode" AND IOS)
+        message(WARNING
+            "Due to CMake limitations, qt6_add_big_resources can't be used when building for iOS. "
+            "See https://bugreports.qt.io/browse/QTBUG-103497 for details. "
+            "Falling back to using qt6_add_resources. "
+            "Consider using qt6_add_resources directly to silence this warning."
+        )
+        qt6_add_resources(${ARGV})
+        set(${outfiles} ${${outfiles}} PARENT_SCOPE)
+        return()
+    endif()
+
     if (CMAKE_VERSION VERSION_LESS 3.9)
         message(FATAL_ERROR, "qt6_add_big_resources requires CMake 3.9 or newer")
     endif()
diff --git a/src/corelib/doc/src/cmake/qt_add_big_resources.qdoc b/src/corelib/doc/src/cmake/qt_add_big_resources.qdoc
index 8cb78cf9c15..5ae7b9728ba 100644
--- a/src/corelib/doc/src/cmake/qt_add_big_resources.qdoc
+++ b/src/corelib/doc/src/cmake/qt_add_big_resources.qdoc
@@ -38,6 +38,10 @@ to binaries would be too time consuming or memory intensive.
 needs to be added as a source file to a CMake target and have the property
 \c{SKIP_AUTORCC} set to \c{ON}.
 
+\warning This command is not supported when building for iOS, use
+\l qt_add_resources instead.
+See \l{https://bugreports.qt.io/browse/QTBUG-103497}{QTBUG-103497} for details.
+
 \section1 Arguments
 
 You can set additional \c{OPTIONS} that should be added to the \c{rcc} calls.