法華義疏 11.203

11.203

此或可在家菩薩，不預犯戒之例；設令出家適時而化，如身子與須達共載一車而不犯罪也。

This may perhaps be a lay bodhisattva, who does not fall under the category of breaking [monastic] precepts. Even supposing he had gone forth from the household, he transformed in accordance with the circumstances, just as Śāriputra and Sudatta rode together in one carriage without committing an offense.