Mayamatam 35.58

35.58

yāvatsaṃprārthitārthaṃtadudayasamaye mūlaharmyaṃprakalpya
tasminnuktvā vidheyaṃ sakalamapi varaṃ sthāpayed bāladhāmni
dviṣṣaṭsaṃvatsarāntaṃ taruṇabhavanakaṃ tadvaraṃ neṣṭamādyairanyeṣāṃ karmaṇāṃ syāttadavadhiradhikaṃ sarvadoṣapradaṃ tat

Having conceived the main temple at the time of its construction as desired, / and having performed in it all that has been prescribed, one should install the excellent [deity] in the temporary abode. / The temporary shrine is good up to twelve years; beyond that, it was not desired by the ancients; / that is the limit for other rituals; exceeding it brings every defect.