John Gill Commentary Mark 11:21

"And Peter calling to remembrance saith unto him, Rabbi, behold, the fig tree which thou cursedst is withered away." — Mark 11:21 (ASV)

And Peter, calling to remembrance
Not so much the tree, and its spreading leaves, and the greatness of it, and the flourishing condition it was in, the other day, as the imprecation of Christ upon it:

says to him, Master, behold, the fig tree which you cursed is
withered away ;
which he observed, as matter of astonishment, and as an instance of Christ's surprising power and authority; (See Gill on Matthew 21:20).