法華論疏 2.378

2.378

四者心悔驚怖，謂大德舍利弗等起如是心：言我不應證於如是小乘之法。如是悔已，心即自止。即此悔心名為驚怖。此義應知。

"Fourth, fear born of regret: Venerable Śāriputra and others give rise to such a thought, saying: 'I should not have realized such Hīnayāna Dharma.' Having regretted thus, their minds thereupon desist. This very remorseful mind is called fear and trepidation. This meaning should be understood."