cracking hashs how to ignore user name??

[Immage]

Hey guys for example say i wanted to crack this hash in the hashcat gui:

5d41402abc4b2a76b9719d911017c592:HFJD:myusername

The first 2 are hash/Salt the last one is the username, how do i get hash cat to ignore it? i want to keep it on output aswell? thanks.