Silsilah as-Sahihah 3956 — What is Tuba?

It is narrated from Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) that the Messenger of Allah (peace and blessings of Allah be upon him) said: "Tuba is the name of a tree in Paradise, the distance of its (shade) is a hundred years, and the garments of the people of Paradise are made from the sheaths of its buds."