极上界(jí shàng jiè) “the highest realm (of the universe)” Cf. 上界(shàng jiè);
not found at HD. 4.1135.; not found at DK. 6.473.;
104c13.若住极上界 为天人讲法 宣畅无量经 不足以为奇(v)
K. 253.9.Bhavâgra~; L. 34a20.有顶;