The poor horse was very melancholy and wandered up and down in the wood seeking some little shelter from the cold wind and rain. Presently a fox met him what’s the matter my friend said he. Why do you hang your head and look so lonely and woe-begone. Ah replied the horse justice and avarice never dwell in one house my master has forgotten all that I done for him so many years and because I can no longer work he has turned me adrift and says unless I become stronger than a lion he will not take me back again what chance can I have of that. He knows I have none or he would not talk so

Which idea is stated explicitly in the text

The idea stated explicitly in the text is that the horse's master has turned him adrift because he can no longer work.