"Tuba is for them." Abdullah ibn Ubayd ibn Umayr said: Tuba is a tree in Paradise; its root is in the dwelling of Muhammad (may Allah bless him and grant him peace), and there is no house or chamber in Paradise that does not have a branch from it in that dwelling. "And a good return," meaning: the destination, which is Paradise.
﴿طُوبَى لَهُم﴾ قَالَ عَبْدُ اللَّهِ بْنِ عُبَيْدِ بْنِ عُمَيْرٍ: طُوبَى شَجَرَةٌ فِي الْجَنَّةِ، أَصْلُهَا فِي دَارِ مُحَمَّدٍ ﷺ، وَلَيْسَ فِي الْجَنَّةِ دَارٌ وَلا غُرْفَةٌ إِلا وَغُصْنٌ مِنْهَا فِي تِلْكَ الدَّار ﴿وَحسن مآب﴾ مرجع، يَعْنِي: الْجنَّة.