TgJ Is56:7 :וְאַיתֵינוּן לְטוּרָא דְקֻדשִי וַאְחַדֵינוּן בְבֵית צְלוֹתִי‏ : I shall bring them to my holy mountain and enable them to rejoice in my place of prayer
See the entire entry for bēṯ ṣlō, bēṯ ṣlōṯā n.m. place with special access to divinity