A.T. Robertson Commentary Mark 11:3

"And if any one say unto you, Why do ye this? say ye, The Lord hath need of him; and straightway he will send him back hither." — Mark 11:3 (ASV)

The Lord (ο Κυριος). So Matt. and Luke. See on Mt 21:3 for discussion of this word applied to Jesus by himself.

He will send him back (αποστελλε). Present indicative in futuristic sense. Matthew 21:3 has the future αποστελε.