法華義疏 12.21

12.21

「爾時妙音」下，品第五章，明所作已竟還歸本土。此為穢國故彼佛有問訊，彼為淨土故此佛無暄涼也。

From "At that time, Gadgadasvara" onward is the fifth section of the chapter, explaining that having completed what was to be done, he returned to his original land. Because this is an impure land, that Buddha sent greetings; because that is a pure land, this Buddha did not inquire after heat and cold.