This hadith has also been transmitted on the authority of Abu Sa'id al-Khudri that Allah's Apostle (ﷺ) is reported to have said: In Paradise, there is a tree under the shadow of which a rider of a fine and swift-footed horse would travel for a hundred years without covering the distance completely. There would be the pleasure of Allah for the inmates of Paradise and He would never be annoyed with them.
Explanation & Benefits
Shaykh Maulana Abdul Aziz Alvi
Hadith Commentary: Benefits and Issues: Among the blessings and comforts that Allah, the Exalted, has created in Paradise for His servants, is a category of those vast and expansive shady trees, whose shade covers such an extensive area that even a rider mounted on the best and most well-trained horse would not be able to traverse it in a hundred years.
Source: Tuhfat al-Muslim: Commentary on Sahih Muslim, Page: 7139