Many
Sambahula Sutta (SN 9:4)
On one occasion many monks were staying among the Kosalans in a forest grove. Then, at the end of the Rains, they left to go on a three-month wandering tour.
And at that time, the devatā living in that forest grove, lamenting from not seeing those monks, recited this verse:
“Today it’s as if discontent is displayed to me, as I see many empty seats. They, brilliant speakers, learned: Where have those disciples of Gotama gone?”
When this was said, another devatā recited a verse for that devatā:
“They’ve gone to Magadha, gone to Kosala, & some to the land of the Vajjians. Like deer, wandering free from ties, the monks dwell without home.”
See also: Sn 1:3