Is the Hadith: "A comer came to me from my Lord and said to me: 'There is no servant who invokes blessings upon you once, except that Allah invokes blessings upon him tenfold...' then it will suffice you for the worries of this world and the Hereafter" authentic?

The aforementioned Hadith (definition) was narrated by Al-Tirmidhi from Ubayy ibn Ka’b, who said: When two-thirds of the night had passed, the Messenger of Allah (peace be upon him) would stand up and say: “O people, remember Allah! The Rajifah (the first trumpet blast) has come, followed by the Radifah (the second trumpet blast). Death has come with all that it entails.” Ubayy said: I said, “O Messenger of Allah, I frequently invoke blessings upon you, so how much of my prayer should I dedicate to you?” He said: “As much as you wish.” I said: “A quarter?” He said: “As much as you wish, and if you increase it, it will be better for you.” I said: “Half?” He said: “As much as you wish, and if you increase it, it will be better for you.” He said: I said: “Then two-thirds?” He said: “As much as you wish, and if you increase it, it will be better for you.” I said: “I will dedicate all my prayer to you.” He said: “Then your worries will be sufficient for you, and your sins will be forgiven.”

The meaning of "how much of my prayer should I dedicate to you" is: instead of the supplication I make for myself, or instead of my night prayer. And the meaning of "I will dedicate all my prayer to you" is: I will spend all the time I used to spend in supplicating for myself in invoking blessings upon you. And the meaning of "then your worries will be sufficient for you" is: if you spend all your time of supplication in invoking blessings upon me, you will be granted the desires of this world and the Hereafter.