Buddhist Dictionary of Pali Proper Names by G P Malalasekera
Ubbhataka
Ubbhataka:A mote-hall built by the Mallas of Pāvā.When it was finished they invited the Buddha to be its first occupant.The Buddha went with the monks and spent the night in the hall.It was on this occasion that Sāriputta recited theSangīti Sutta (D.iii.207ff).
Buddhaghosa says (DA.iii.971) that the hall was so-called (”Thrown-aloft-er”) because of its great height.