I saw this post on dhammawheel today
The hundreds of Arahants met in Saptaparani cave. Google for it. Does it even look like it can fit that many bhikkhus inside of it?
The poster of this apparently saw a photo of the cave and thought the arahats were all inside the cave. Whereas of course the Hall was built outside the cave.
The great King Ajatasattu following the request of the Sangha erected a great hall after the Parinibbana of the Buddha.
THE
INCEPTION OF DISCIPLINE AND
THE VINAYA NIDANA translated by N. A. JAYAWICKRAMA (Bahiranidana of
Buddhaghosa’s Samantapasida, the Vinaya Commentary)
At that time there were eighteen great monasteries at Rajagaha.
And all of them were soiled with the cast-off and
accumulated rubbish. For, at the time of the of the Exalted One in
passing away perfect Nibbana all the monks took each his bowl and robe and went away deserting the monasteries and cells. The Elders there, in order to honour the request of the Exalted One and to escape
the adverse criticism of members of heretical schools, thought of repairing the dilapidations during the first month. For, should the heretics say,
disciples of the Recluse Gotama looked after their
monasteries while their Teacher was alive ;now that he has
passed away in perfect Nibbana, they have deserted them," it is said that they thought so to escape the blame from them.
[10] And so it has been said ^ :
" Friends, the Exalted One has praised the effecting of
It then occurred to the Elder monks, repairs to dilapidations.
month, repair the dilapidations and assemble to rehearse the Dhamma and the Vinaya during the second month."