It is Gabriel speaking, for notice:
Dan 10:11 And he said unto me, O Daniel, a man greatly beloved, understand the words that I speak unto thee, and stand upright: for unto thee
am I now sent. And when he had spoken this word unto me, I stood trembling.
Dan 10:13 But the prince of the kingdom of Persia withstood me one and twenty days: but, lo,
Michael, one of the chief princes, came to help me; and I remained there with the kings of Persia.
Otherwise, notice what you would have the Son saying in vs 11,13.
Yet, all we need to do is confirm through study:
Daniel, upon seeing this great sight, falls “face toward the ground” in a “deep sleep”. Then, in a moment, a “hand touched” him, and lifts up Daniel, and begins speaking to him, being sent to him from the Son of God:
Daniel 10:10 - And, behold,
an hand touched me, which set me upon my knees and
upon the palms of my hands.
Daniel 10:11 -
And he said unto me, O Daniel, a man greatly beloved, understand the words that
I speak unto thee, and stand upright: for
unto thee am I now sent. And when he had spoken this word unto me, I stood trembling.
The “hand” and the one that was then speaking to Daniel, is Gabriel.
Compare:
Daniel 10:9 - “... then was I in a deep sleep on my face, and my face toward the ground ...”
to Daniel 8:18 - “... I was in a deep sleep on my face toward the ground ...”
Compare:
Daniel 10:12 - “... I am come for thy words ...”
also Daniel 10:11 - “... sent ...”
to Daniel 9:21 - “... being caused to fly swiftly ...”
and Daniel 9:22 - “... And he informed
me, and talked with me ...”
and Daniel 9:23 - “... I am come to shew
thee ...”
and Daniel 8:17 - “... So he came near where I stood ...”
Compare:
Daniel 10:10 - “... hand touched me ...”
to Daniel 9:21KJB - “... touched me ...”
and Daniel 8:18 - “... he touched me, and set me upright ...”
Compare:
Daniel 10:11-14 - “... understand ...”
to Daniel 9:22 - “... skill and understanding ...”
and Daniel 9:23 - “... therefore understand the matter, and consider the vision.”
and Daniel 9:25 - “Know therefore and understand ...”
and Daniel 8:16 - “... make this
man to understand the vision ...”
and Daniel 8:17 - “Understand, O son of man ...”
and Daniel 8:19 - “Behold, I will make thee know ...”
and Daniel 7:16 “So he told me, and made me know the interpretation of the things.”
Compare:
Daniel 10:12 - “... for from the first day that thou didst set thine heart ...”
and Daniel 10:12 - “... to chasten thyself before thy God ...”
and Daniel 10:12 - “... thy words were heard ...”
to Daniel 9:23 - “At the beginning of thy supplications the commandment came forth ...”
and Daniel 8:15 - “... sought for the meaning ...”
and Daniel 7:16 - “... asked him the truth of all this ...”
and Daniel 7:19 - “Then I would know the truth of the fourth beast ...”
Compare:
Daniel 10:19 - “O man greatly beloved ...”
to Daniel 9:21 - “... for thou
art greatly beloved ...”
Compare:
Daniel 10:18 - “... like the appearance of a man ...”
to Daniel 9:21 - “... even the man
Gabriel, whom I had seen in the vision at the beginning ...”
and Daniel 8:15 - “... behold, there stood before me as the appearance of a man ...”
and Daniel 8:16 - “...
Gabriel ...”
and Daniel 7:16 - “... one of them that stood by ...”
Gabriel continues speaking to Daniel after lifting him up, telling him, how that Satan was resisting himself, so that the prophecies of Daniel 8-9 would fail. Gabriel needed the aid.