Buddhist Dictionary of Pali Proper Names by G P Malalasekera
Selantarasamūha
Selantarasamūha:The name of a monastic building provided by the king of Ceylon (probably Mānavamma,Cv.lvii.37f.; Cv.Trs.i.196,n.2) for Dāthopatissa after his ordination.Later Yasodharā,daughter of Vijayabāhu I., erected there a building called the Pasādapāsāda.Cv.lx.84.