The evangelists Matthew and John narrate this event as follows (according to the Russian translation):
(John 12:1-2, 12-13):
Six days before the Passover, Jesus came to Bethany, where Lazarus was dead, whom He raised from the dead. There they prepared a supper for Him... The next day, the multitude of people who came to the holiday (Easter), hearing that Jesus was going to Jerusalem, took palm branches, came out to meet Him and exclaimed: Hosanna! Blessed is the King of Israel who comes in the name of the Lord!
(Matthew 21:1-12, 14-17):
And when they drew near to Jerusalem and came to Bethphage to the Mount of Olives, then Jesus sent two disciples, saying to them: Go to the village that is right in front of you; and immediately you will find a donkey tied and a colt with her; untie, bring to Me; and if anyone says anything to you, answer that the Lord needs them; and he will send them forthwith. Nevertheless, this happened, so that it might be fulfilled that was spoken through the prophet, who says: “Say to the daughter of Zion: Behold, your king comes to you meek, sitting on a donkey and the colt of a donkey who is under the yoke” (Isa. 62:11; Zech. 9:9). The disciples went and did as Jesus commanded them: they brought a donkey and a colt, and put their clothes on them, and He sat on top of them. Many people spread their clothes along the road; while others cut branches from trees and spread them along the road. The people who preceded and accompanied exclaimed: Hosanna to the Son of David! Blessed is He who comes in the name of the Lord! Hosanna in the highest! And when He entered Jerusalem, the whole city began to stir and said: Who is this? And the people said, This is Jesus, the prophet of Nazareth of Galilee.
And Jesus entered the church of God and drove out all those who were selling and buying in the church... And the blind and the lame came to Him in the church; and He healed them. When the high priests and scribes saw the miracles that He performed, and the children shouting in the church and saying: “Hosanna to the Son of David!”, they were indignant and said to Him: Do you hear what they say? Jesus says to them: Yes! Have you never read: “From the mouths of babes and sucklings You have made praise” (Ps. 8:3)? And leaving them, he went out of the city to Bethany.
Troparion.
Assuring the general resurrection before Your passion, You raised Lazarus from the dead, O Christ our God. In the same way, we, like children, bearing signs of victory, cry out to You, the conqueror of death: Hosanna in the highest, blessed is He who comes in the name of the Lord.
Before Your suffering, wanting to convince (everyone) of the general resurrection, You raised Lazarus from the dead, O Christ our God. Therefore, we, like (Jewish) children, holding the banner of victory in our hands, cry out to You, the conqueror of death: Hosanna in the highest, blessed is He who comes in the name of the Lord.
Kontakion.
On the throne in heaven, carried on the earth by lots, O Christ God, Thou hast received the praise of Angels and the chanting of children, calling to Thee: Blessed art Thou, Who art come to call Adam.
Stichera.
Today the grace of the Holy Spirit has gathered us, and we have all taken up Your cross and say: Blessed is He who comes in the name of the Lord, Hosanna in the highest.
Greatness.
We magnify You, life-giving Christ, Hosanna in the highest, and we cry to You: blessed is He who comes in the name of the Lord.
Prokeimenon.
From the mouth of a child and of those who piss you have made praise (Ps. 8:3)
Irmosy.
1. The springs of the abyss of moisture that have appeared are not involved, and the seas that have opened, the agitated foundations of the storm: for with mania you forbade him, but you saved a fair number of people, singing a victorious song to You, O Lord.
3. Sharpening the edge, by Thy commandment, the hard stone of the people of Israel: Thou art the stone, O Christ, and the life upon which the Church is established, calling: Hosanna, blessed art thou that cometh.
4. Christ is coming, our God will clearly come and will not become obdurate, from the mountain-shaded thicket, unskilled maidens giving birth, the prophet of old speaks. Thus we all cry: glory to Your power. God.
5. Go up to Mount Zion and preach the gospel, and preach to Jerusalem; lift up your voice in the fortress: the glorious word spoken about you, the city of God: peace on Israel and salvation on the tongue.
6. The righteous souls cried out with joy: now a new covenant is bequeathed to the world, and by sprinkling, may the people of God be renewed in the blood.
7. Who saved Thy youths in the fires of Abraham, and slayed the Chaldeans, even when they righteously grasped the truth, blessed art Thou, O blessed Lord, God of our fathers.
The springs of the abyss appeared devoid of moisture, and the bottom of the storm-swept sea was revealed; for You commanded him with a wave (thus) and saved the chosen people, singing a song of victory to You, O Lord.
The people of Israel drank from the truncated hard stone, which flowed water according to Your command; this stone and life are You, Christ, on Whom the Church is established, crying: Hosanna, blessed are You who comes.
Christ, coming solemnly, (is) our God. In ancient times, the prophet said about Him that, without delay, He would come from a mountain overshadowed by a thicket - from a Virgin who did not know a husband. Therefore let us all exclaim: Glory to Your power, O Lord.
Go up to the mountain, you who preach good news to Zion, and lift up your voice loudly, who preach to Jerusalem: Glorious things have been proclaimed about you, city of God: (from you) peace to Israel and salvation to the Gentiles.
The souls of the righteous exclaimed in joy: now a new covenant is established for the world, and may people be renewed through the sprinkling of Divine blood.
Who saved Your Abrahamic servants in the midst of the fire and destroyed the Chaldeans, whom Your Divine justice righteously punished, blessed are You, glorious Lord, God of our fathers.
8. Rejoice in Jerusalem, rejoice ye who love Zion: for the Lord of hosts has come to reign forever. Let all the earth stand in awe at His presence, and let it cry: Bless all the works of the Lord, the Lord.
9. God the Lord and having appeared to us, form a holiday, and come rejoicing, let us exalt Christ, with branches and branches, calling with songs: blessed is He who comes in the name of the Lord our Savior. The Lord (our) is God, and He appeared to us; make a holiday and come with fronds and branches, let us exalt Christ in joy, exclaiming in hymns: blessed is He who comes in the name of the Lord our Savior.