diff --git a/apps/hadis/models/transmitter.py b/apps/hadis/models/transmitter.py
index 318552e..8527013 100644
--- a/apps/hadis/models/transmitter.py
+++ b/apps/hadis/models/transmitter.py
@@ -1080,10 +1080,36 @@ class TransmitterOriginalText(models.Model):
             title = "Untitled"
         return f"{title} by {self.transmitter}"
     
+    def auto_populate_title(self):
+        """
+        Auto-fills self.title if empty, using the title of the linked BookReference.
+        """
+        if self.title and isinstance(self.title, list):
+            has_val = any(
+                isinstance(item, dict) and (item.get('text', '') or item.get('title', '')).strip()
+                for item in self.title
+            )
+            if has_val:
+                return False
+
+        if self.pk:
+            ref = self.references.filter(book_reference__isnull=False).first()
+            if ref and ref.book_reference and ref.book_reference.title:
+                b_title = ref.book_reference.title
+                if isinstance(b_title, list) and any(isinstance(x, dict) and (x.get('text', '') or x.get('title', '')).strip() for x in b_title):
+                    self.title = b_title
+                    return True
+
+        return False
+
     def save(self, *args, **kwargs):
         """
         Override save to automatically generate smart slugs.
         """
+        # Auto-fill title from book reference if empty
+        if not self.title or (isinstance(self.title, list) and not any(isinstance(item, dict) and (item.get('text', '') or item.get('title', '')).strip() for item in self.title)):
+            self.auto_populate_title()
+
         from utils.slug import build_slug_for_instance
         build_slug_for_instance(self, source_field='title')
         
diff --git a/apps/hadis/serializers/serializers_admin.py b/apps/hadis/serializers/serializers_admin.py
index cca5afb..beec26a 100644
--- a/apps/hadis/serializers/serializers_admin.py
+++ b/apps/hadis/serializers/serializers_admin.py
@@ -3598,6 +3598,20 @@ class AdminTransmitterOriginalTextSerializer(serializers.ModelSerializer):
         address = validated_data.pop("address", None)
         delete_image_ids = validated_data.pop("delete_image_ids", [])
 
+        # Pre-fill title from book reference if title is empty
+        title_val = validated_data.get("title")
+        has_title = isinstance(title_val, list) and any(
+            isinstance(item, dict) and (item.get('text', '') or item.get('title', '')).strip()
+            for item in title_val
+        )
+        if not has_title and book_reference_id:
+            try:
+                b_ref = BookReference.objects.filter(id=book_reference_id.id if hasattr(book_reference_id, 'id') else book_reference_id).first()
+                if b_ref and b_ref.title:
+                    validated_data["title"] = b_ref.title
+            except Exception:
+                pass
+
         instance = super().create(validated_data)
 
         ref_data = {
@@ -3606,6 +3620,11 @@ class AdminTransmitterOriginalTextSerializer(serializers.ModelSerializer):
             "delete_image_ids": delete_image_ids,
         }
         save_relation_reference_data(instance, ref_data, request=request, ref_type="original_text")
+
+        if not instance.title or (isinstance(instance.title, list) and not any(isinstance(item, dict) and (item.get('text', '') or item.get('title', '')).strip() for item in instance.title)):
+            if instance.auto_populate_title():
+                instance.save(update_fields=['title', 'slug', 'share_link'])
+
         return instance
 
     def update(self, instance, validated_data):
@@ -3614,6 +3633,20 @@ class AdminTransmitterOriginalTextSerializer(serializers.ModelSerializer):
         address = validated_data.pop("address", None)
         delete_image_ids = validated_data.pop("delete_image_ids", [])
 
+        # Pre-fill title from book reference if title is empty
+        title_val = validated_data.get("title")
+        has_title = isinstance(title_val, list) and any(
+            isinstance(item, dict) and (item.get('text', '') or item.get('title', '')).strip()
+            for item in title_val
+        )
+        if not has_title and book_reference_id:
+            try:
+                b_ref = BookReference.objects.filter(id=book_reference_id.id if hasattr(book_reference_id, 'id') else book_reference_id).first()
+                if b_ref and b_ref.title:
+                    validated_data["title"] = b_ref.title
+            except Exception:
+                pass
+
         instance = super().update(instance, validated_data)
 
         ref_data = {
@@ -3622,6 +3655,11 @@ class AdminTransmitterOriginalTextSerializer(serializers.ModelSerializer):
             "delete_image_ids": delete_image_ids,
         }
         save_relation_reference_data(instance, ref_data, request=request, ref_type="original_text")
+
+        if not instance.title or (isinstance(instance.title, list) and not any(isinstance(item, dict) and (item.get('text', '') or item.get('title', '')).strip() for item in instance.title)):
+            if instance.auto_populate_title():
+                instance.save(update_fields=['title', 'slug', 'share_link'])
+
         return instance
 
 
diff --git a/apps/hadis/views_admin.py b/apps/hadis/views_admin.py
index ca5ac7b..be6ae80 100644
--- a/apps/hadis/views_admin.py
+++ b/apps/hadis/views_admin.py
@@ -1566,6 +1566,20 @@ class AdminInterpretationReferenceViewSet(ModelViewSet):
 
 class AdminOriginalTextReferenceViewSet(ModelViewSet):
 
+    def perform_create(self, serializer):
+        instance = serializer.save()
+        ot = instance.original_text
+        if ot and (not ot.title or (isinstance(ot.title, list) and not any(isinstance(x, dict) and (x.get('text', '') or x.get('title', '')).strip() for x in ot.title))):
+            if ot.auto_populate_title():
+                ot.save(update_fields=['title', 'slug', 'share_link'])
+
+    def perform_update(self, serializer):
+        instance = serializer.save()
+        ot = instance.original_text
+        if ot and (not ot.title or (isinstance(ot.title, list) and not any(isinstance(x, dict) and (x.get('text', '') or x.get('title', '')).strip() for x in ot.title))):
+            if ot.auto_populate_title():
+                ot.save(update_fields=['title', 'slug', 'share_link'])
+
     serializer_class = AdminOriginalTextReferenceSerializer
 
     permission_classes = [IsAuthenticated, IsSuperAdmin]