Man pages matching name dhcpd.leases in section 5:

dhcpd.leases.5.en	debian 10 / isc-dhcp-server
dhcpd.leases.5.ja	debian 10 / manpages-ja
dhcpd.leases.5.en	debian 11 / isc-dhcp-server
dhcpd.leases.5.ja	debian 11 / manpages-ja
dhcpd.leases.5.en	debian 12 / isc-dhcp-server
dhcpd.leases.5.ja	debian 12 / manpages-ja