John Gill Commentary Luke 9:58

"And Jesus said unto him, The foxes have holes, and the birds of the heaven [have] nests; but the Son of man hath not where to lay his head." — Luke 9:58 (ASV)

And Jesus said to him, foxes have holes
Both the words of this man to Christ, and Christ's answer to him, are exactly the same as in Matthew, which makes it look as if it was the same history; though it is not improbable, that Christ might be accosted in the same manner by another person, at another time and place, and return a like answer to each; (See Gill on Matthew 8:20).