diff --git a/src/sentry/workflow_engine/handlers/detector/base.py b/src/sentry/workflow_engine/handlers/detector/base.py
index f33787eff12c33..be3f27cdd98cd2 100644
--- a/src/sentry/workflow_engine/handlers/detector/base.py
+++ b/src/sentry/workflow_engine/handlers/detector/base.py
@@ -34,6 +34,7 @@ class EvidenceData(Generic[DataPacketEvaluationType]):
     detector_id: int
     data_packet_source_id: int
     conditions: list[dict[str, Any]]
+    data_sources: list[dict[str, Any]] = dataclasses.field(default_factory=list, kw_only=True)
 
 
 @dataclasses.dataclass(frozen=True, kw_only=True)
diff --git a/src/sentry/workflow_engine/handlers/detector/stateful.py b/src/sentry/workflow_engine/handlers/detector/stateful.py
index 230e3ccbbc0524..48cc3110443576 100644
--- a/src/sentry/workflow_engine/handlers/detector/stateful.py
+++ b/src/sentry/workflow_engine/handlers/detector/stateful.py
@@ -9,6 +9,7 @@
 from django.db.models import Q
 from sentry_redis_tools.retrying_cluster import RetryingRedisCluster
 
+from sentry.api.serializers import serialize
 from sentry.issues.issue_occurrence import IssueOccurrence
 from sentry.issues.status_change_message import StatusChangeMessage
 from sentry.models.group import GroupStatus
@@ -21,7 +22,7 @@
     EventData,
     GroupedDetectorEvaluationResult,
 )
-from sentry.workflow_engine.models import DataPacket, Detector, DetectorState
+from sentry.workflow_engine.models import DataPacket, DataSource, Detector, DetectorState
 from sentry.workflow_engine.processors.data_condition_group import (
     ProcessedDataConditionGroup,
     process_data_condition_group,
@@ -353,6 +354,29 @@ def build_detector_evidence_data(
         """
         return {}
 
+    def _build_evidence_data_sources(
+        self, data_packet: DataPacket[DataPacketType]
+    ) -> list[dict[str, Any]]:
+        try:
+            data_sources = list(
+                DataSource.objects.filter(detectors=self.detector, source_id=data_packet.source_id)
+            )
+            if not data_sources:
+                logger.warning(
+                    "Matching data source not found for detector while generating occurrence evidence data",
+                    extra={
+                        "detector_id": self.detector.id,
+                        "data_packet_source_id": data_packet.source_id,
+                    },
+                )
+                return []
+            return serialize(data_sources)
+        except Exception:
+            logger.exception(
+                "Failed to serialize data source definition when building workflow engine evidence data"
+            )
+            return []
+
     def _build_workflow_engine_evidence_data(
         self,
         evaluation_result: ProcessedDataConditionGroup,
@@ -363,15 +387,18 @@ def _build_workflow_engine_evidence_data(
         Build the workflow engine specific evidence data.
         This is data that is common to all detectors.
         """
-        return {
+        base: dict[str, Any] = {
             "detector_id": self.detector.id,
             "value": evaluation_value,
             "data_packet_source_id": str(data_packet.source_id),
             "conditions": [
                 result.condition.get_snapshot() for result in evaluation_result.condition_results
             ],
+            "data_sources": self._build_evidence_data_sources(data_packet),
         }
 
+        return base
+
     def evaluate_impl(
         self, data_packet: DataPacket[DataPacketType]
     ) -> GroupedDetectorEvaluationResult:
diff --git a/tests/sentry/incidents/test_metric_issue_detector_handler.py b/tests/sentry/incidents/test_metric_issue_detector_handler.py
index 435434ba388025..a5e69543a56494 100644
--- a/tests/sentry/incidents/test_metric_issue_detector_handler.py
+++ b/tests/sentry/incidents/test_metric_issue_detector_handler.py
@@ -24,6 +24,7 @@ def generate_evidence_data(
         detector_trigger: DataCondition,
         extra_trigger: DataCondition | None = None,
     ):
+        self.query_subscription.refresh_from_db()
 
         conditions = [
             {
@@ -50,6 +51,29 @@ def generate_evidence_data(
             "alert_id": self.alert_rule.id,
             "data_packet_source_id": str(self.query_subscription.id),
             "conditions": conditions,
+            "data_sources": [
+                {
+                    "id": str(self.data_source.id),
+                    "organizationId": str(self.organization.id),
+                    "type": self.data_source.type,
+                    "sourceId": str(self.query_subscription.id),
+                    "queryObj": {
+                        "id": str(self.query_subscription.id),
+                        "status": self.query_subscription.status,
+                        "subscription": self.query_subscription.subscription_id,
+                        "snubaQuery": {
+                            "id": str(self.snuba_query.id),
+                            "dataset": self.snuba_query.dataset,
+                            "query": self.snuba_query.query,
+                            "aggregate": self.snuba_query.aggregate,
+                            "timeWindow": self.snuba_query.time_window,
+                            "environment": self.environment.name,
+                            "eventTypes": ["error"],
+                            "extrapolationMode": "unknown",
+                        },
+                    },
+                }
+            ],
         }
 
         return evidence_data
diff --git a/tests/sentry/notifications/notification_action/test_metric_alert_registry_handlers.py b/tests/sentry/notifications/notification_action/test_metric_alert_registry_handlers.py
index 9712b2b38ef9b5..b75c0fda9b9d61 100644
--- a/tests/sentry/notifications/notification_action/test_metric_alert_registry_handlers.py
+++ b/tests/sentry/notifications/notification_action/test_metric_alert_registry_handlers.py
@@ -101,6 +101,7 @@ def create_models(self):
                     "condition_result": DetectorPriorityLevel.OK.value,
                 },
             ],
+            data_sources=[],
             alert_id=self.alert_rule.id,
         )
 
@@ -126,6 +127,7 @@ def create_models(self):
                     "condition_result": DetectorPriorityLevel.HIGH.value,
                 },
             ],
+            data_sources=[],
             alert_id=self.alert_rule.id,
         )
         self.group, self.event, self.group_event = self.create_group_event(