觀無量壽佛經疏 2.55

2.55

五、從時阿闍世驚怖下，至汝不為我耶已來，正明世王生怖。此明闍世既見二臣諫辭麁切，又覩按劍而去，恐臣背我，向彼父王，更生異計。致使情地不安，故稱惶懼。彼既捨我，不知為誰。心疑不決，遂即口問審之。故云耆婆汝不為我也。言耆婆者，是王之弟也。古人云：家有衰禍，非親不救。汝既是我弟者，豈同月光也。

Fifth, from 'At that time Ajātaśatru was terrified' down to 'Are you not on my side?' clearly explains that the king gave rise to fear. This explains that when Ajātaśatru saw the coarse and urgent remonstrance of the two ministers and witnessed them departing with hands on their swords, he feared the ministers were turning their backs on him and would go to the father-king to hatch other plans. This made his mind uneasy, and therefore it is called 'terrified'. Since they had abandoned him, he did not know whose side they were on. With his mind doubtful and undecided, he immediately asked with his mouth to ascertain it. Therefore he said: 'Jīva, are you not on my side?' 'Jīva' was the king's younger brother. The ancients said: 'When misfortune strikes a household, none but kin can rescue it.' Since you are my younger brother, how could you be the same as Candraprabha?