ant-design/components/notification/demo/duration.tsx

import React from 'react';
import { Button, notification } from 'antd';

const App: React.FC = () => {
  const [api, contextHolder] = notification.useNotification();

  const openNotification = () => {
    api.open({
      message: 'Notification Title',
      description:
        'I will never close automatically. This is a purposely very very long description that has many many characters and words.',
      duration: 0,
    });
  };

  return (
    <>
      {contextHolder}
      <Button type="primary" onClick={openNotification}>
        Open the notification box
      </Button>
    </>
  );
};

export default App;