Buddhist Dictionary of Pali Proper Names by G P Malalasekera
Kalambatittha
Kalambatittha:A vihāra in Ceylon.In it once lived fifty monks who agreed on the full-moon day of āsālha not to talk to each other until they became arahants.Their goal was reached within a month (DA.i.190; SA.iii.155; SnA.i.57; VibhA.353; MA.i.209f).
This vihāra is very probably identical with Galambatittha (q.v.).