diff --git a/bundles/org.openhab.core.thing/src/main/java/org/openhab/core/thing/events/ThingEventFactory.java b/bundles/org.openhab.core.thing/src/main/java/org/openhab/core/thing/events/ThingEventFactory.java
index 78f32e13b..fa67191b7 100644
--- a/bundles/org.openhab.core.thing/src/main/java/org/openhab/core/thing/events/ThingEventFactory.java
+++ b/bundles/org.openhab.core.thing/src/main/java/org/openhab/core/thing/events/ThingEventFactory.java
@@ -18,6 +18,7 @@ import java.util.Set;
 
 import org.eclipse.jdt.annotation.NonNullByDefault;
 import org.eclipse.jdt.annotation.Nullable;
+import org.openhab.core.events.AbstractEvent;
 import org.openhab.core.events.AbstractEventFactory;
 import org.openhab.core.events.Event;
 import org.openhab.core.events.EventFactory;
@@ -47,6 +48,8 @@ import org.osgi.service.component.annotations.Component;
 @Component(immediate = true, service = EventFactory.class)
 @NonNullByDefault
 public class ThingEventFactory extends AbstractEventFactory {
+    static final String THING_SOURCE = "org.openhab.core.thing";
+
     static final String THING_STATUS_INFO_EVENT_TOPIC = "openhab/things/{thingUID}/status";
 
     static final String THING_STATUS_INFO_CHANGED_EVENT_TOPIC = "openhab/things/{thingUID}/statuschanged";
@@ -330,7 +333,8 @@ public class ThingEventFactory extends AbstractEventFactory {
         String topic = buildTopic(CHANNEL_TRIGGERED_EVENT_TOPIC, channelUID);
         TriggerEventPayloadBean bean = new TriggerEventPayloadBean(event, channelUID.getAsString());
         String payload = serializePayload(bean);
-        return new ChannelTriggeredEvent(topic, payload, null, event, channelUID);
+        return new ChannelTriggeredEvent(topic, payload,
+                AbstractEvent.buildSource(THING_SOURCE, channelUID.getAsString()), event, channelUID);
     }
 
     private Event createTriggerEvent(String topic, String payload, @Nullable String source) {
diff --git a/bundles/org.openhab.core.thing/src/main/java/org/openhab/core/thing/internal/profiles/ProfileCallbackImpl.java b/bundles/org.openhab.core.thing/src/main/java/org/openhab/core/thing/internal/profiles/ProfileCallbackImpl.java
index 39b909323..c16d0df73 100644
--- a/bundles/org.openhab.core.thing/src/main/java/org/openhab/core/thing/internal/profiles/ProfileCallbackImpl.java
+++ b/bundles/org.openhab.core.thing/src/main/java/org/openhab/core/thing/internal/profiles/ProfileCallbackImpl.java
@@ -17,6 +17,7 @@ import java.util.function.Function;
 import org.eclipse.jdt.annotation.NonNullByDefault;
 import org.eclipse.jdt.annotation.Nullable;
 import org.openhab.core.common.SafeCaller;
+import org.openhab.core.events.AbstractEvent;
 import org.openhab.core.events.EventPublisher;
 import org.openhab.core.items.Item;
 import org.openhab.core.items.ItemStateConverter;
@@ -45,6 +46,7 @@ import org.slf4j.LoggerFactory;
  */
 @NonNullByDefault
 public class ProfileCallbackImpl implements ProfileCallback {
+    private static final String THING_SOURCE = "org.openhab.core.thing";
 
     private final Logger logger = LoggerFactory.getLogger(ProfileCallbackImpl.class);
 
@@ -118,13 +120,12 @@ public class ProfileCallbackImpl implements ProfileCallback {
     }
 
     @Override
-    public void sendCommand(Command command) {
-        eventPublisher
-                .post(ItemEventFactory.createCommandEvent(link.getItemName(), command, link.getLinkedUID().toString()));
+    public void sendCommand(Command command, @Nullable String source) {
+        eventPublisher.post(ItemEventFactory.createCommandEvent(link.getItemName(), command, buildSource(source)));
     }
 
     @Override
-    public void sendUpdate(State state) {
+    public void sendUpdate(State state, @Nullable String source) {
         Item item = itemProvider.apply(link.getItemName());
         if (item == null) {
             logger.warn("Cannot post update event '{}' for item '{}', because no item could be found.", state,
@@ -142,12 +143,11 @@ public class ProfileCallbackImpl implements ProfileCallback {
             acceptedState = itemStateConverter.convertToAcceptedState(state, item);
         }
 
-        eventPublisher.post(
-                ItemEventFactory.createStateEvent(link.getItemName(), acceptedState, link.getLinkedUID().toString()));
+        eventPublisher.post(ItemEventFactory.createStateEvent(link.getItemName(), acceptedState, buildSource(source)));
     }
 
     @Override
-    public void sendTimeSeries(TimeSeries timeSeries) {
+    public void sendTimeSeries(TimeSeries timeSeries, @Nullable String source) {
         Item item = itemProvider.apply(link.getItemName());
         if (item == null) {
             logger.warn("Cannot send time series event '{}' for item '{}', because no item could be found.", timeSeries,
@@ -155,8 +155,8 @@ public class ProfileCallbackImpl implements ProfileCallback {
             return;
         }
 
-        eventPublisher.post(
-                ItemEventFactory.createTimeSeriesEvent(link.getItemName(), timeSeries, link.getLinkedUID().toString()));
+        eventPublisher
+                .post(ItemEventFactory.createTimeSeriesEvent(link.getItemName(), timeSeries, buildSource(source)));
     }
 
     @FunctionalInterface
@@ -164,4 +164,8 @@ public class ProfileCallbackImpl implements ProfileCallback {
         @Nullable
         Command toAcceptedCommand(Command originalType, @Nullable Channel channel, @Nullable Item item);
     }
+
+    private String buildSource(@Nullable String source) {
+        return AbstractEvent.buildDelegatedSource(source, THING_SOURCE, link.getLinkedUID().toString());
+    }
 }
diff --git a/bundles/org.openhab.core.thing/src/main/java/org/openhab/core/thing/profiles/ProfileCallback.java b/bundles/org.openhab.core.thing/src/main/java/org/openhab/core/thing/profiles/ProfileCallback.java
index 53966714a..0543e4a6a 100644
--- a/bundles/org.openhab.core.thing/src/main/java/org/openhab/core/thing/profiles/ProfileCallback.java
+++ b/bundles/org.openhab.core.thing/src/main/java/org/openhab/core/thing/profiles/ProfileCallback.java
@@ -13,6 +13,7 @@
 package org.openhab.core.thing.profiles;
 
 import org.eclipse.jdt.annotation.NonNullByDefault;
+import org.eclipse.jdt.annotation.Nullable;
 import org.openhab.core.thing.link.ItemChannelLink;
 import org.openhab.core.types.Command;
 import org.openhab.core.types.State;
@@ -45,19 +46,49 @@ public interface ProfileCallback {
      *
      * @param command
      */
-    void sendCommand(Command command);
+    default void sendCommand(Command command) {
+        sendCommand(command, null);
+    }
+
+    /**
+     * Send a command to the framework.
+     *
+     * @param command
+     * @param source the source of the command event
+     */
+    void sendCommand(Command command, @Nullable String source);
 
     /**
      * Send a state update to the framework.
      *
      * @param state
      */
-    void sendUpdate(State state);
+    default void sendUpdate(State state) {
+        sendUpdate(state, null);
+    }
+
+    /**
+     * Send a state update to the framework.
+     *
+     * @param state
+     * @param source the source of the update
+     */
+    void sendUpdate(State state, @Nullable String source);
 
     /**
      * Send a {@link TimeSeries} update to the framework.
      *
      * @param timeSeries
      */
-    void sendTimeSeries(TimeSeries timeSeries);
+    default void sendTimeSeries(TimeSeries timeSeries) {
+        sendTimeSeries(timeSeries, null);
+    }
+
+    /**
+     * Send a {@link TimeSeries} update to the framework.
+     *
+     * @param timeSeries
+     * @param source the source of the update
+     */
+    void sendTimeSeries(TimeSeries timeSeries, @Nullable String source);
 }