Is the story of the Companion Shareek ibn Hubashah al-Namari entering Paradise through the well of al-Qalt in Al-Baha documented and authentic? And if it is authentic, then which Paradise did he enter?

Sharik ibn Khubashah was a Companion who had a story with Umar ibn al-Khattab, mentioned by Ibn Hibban in Al-Thiqat and others. The summary of it is: He dismounted to draw water from "al-Qult" (a waterhole), and his bucket rope broke. He went down to retrieve it and found a sarab (tunnel) that led him to a land of gardens unlike the gardens of this world. He picked a fig leaf from there. Umar asked him about it, then asked Ka'b al-Ahbar if he found in their books that a man from our nation would enter Paradise and then exit it. Ka'b answered in the affirmative and recognized Sharik. So Banu Numair adopted green as their emblem. Al-Albani judged this story to be false and reprehensible because Paradise is not on Earth and under the well of Sulaiman; rather, it is in the heavens, and this is known by necessity of the religion.