weird clutch problem need advice

[99RangerBoss]

hey dudes this has happened three times now where i have been driving and i go to push in the clutch pedal and the pedal is hard as a rock its like its the break pedal but totally not the break lol i was just wondering what could be causing this so i can get it remedied?

 

[dieselfreek]

it sounds like your hydrualics are acting up get the clutch bled and the slave/master cylinder checked

 

[99RangerBoss]

do you know what to check for? by chance i was thinking it was just my slave but i guess it could be the master so do you know what to check for?