/usr/share/dbus-1/services/org.xfce.xfce4-notifyd.Notifications.service is in xfce4-notifyd 0.2.4-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | [D-BUS Service]
Name=org.freedesktop.Notifications
Exec=/usr/lib/x86_64-linux-gnu/xfce4/notifyd/xfce4-notifyd
|