How to pass dynamically S3url from child to root stack of nestedstack in cloudformation

[Yuviasan]

Child1SG stack:
AWSTemplateFormatVersion: 2010-09-09
Description: Basic SSH Child Security Group.
Resources:
MySSHSecurityGroup1:
Type: AWS::EC2::SecurityGroup
Properties:
GroupDescription: my new SSH Child SG SecurityGroupIngress:
IpProtocol: tcp
FromPort: '22'
ToPort: '22'
CidrIp: 0.0.0.0/0

Root Stack:
AWSTemplateFormatVersion: 2010-09-09
Description: Parameter store of SG1

Resources: myStackWith
Params:
Type: AWS::CloudFormation::Stack
Properties: TemplateURL: https://cf-templates-o3rmx0wkf9l-us-east-1.s3.amazonaws.com/2022115bE6-Child1SG.yaml

For this template URL how to pass dynamically S3 path of child . if S3 automatically create when stack creates.

[indrora]

You can reference items from a specific stack through instantiating a copy of the stack: https://docs.aws.amazon.com/cdk/v2/guide/resources.html#resource_stack

[github-actions[bot]]

Hello! Reopening this discussion to make it searchable.