梵網經菩薩戒本疏 5.36

5.36

Seventh, regarding the permissible and barred: if one is ill oneself, or has newly recovered, or sends someone else to nurse them, or provides food and medicine, or if the other party already has someone, or if the other's illness has already healed—in all such cases there is no offense. Contrary to the above, all are offenses. There are further remaining circumstances, which can be understood by contemplation and analogy.