Book,  Part, Title, Chapter, Can.

1   1,   0,    2,   0, 24  |         force of law unless it is reasonable; a custom which is expressly
2   1,   0,    2,   0, 24  |      reprobated in the law is not reasonable. ~
3   1,   0,    4,   5, 90  |          given without a just and reasonable cause, taking into account
4   3,   0,    4,   0, 831 |        Unless there is a just and reasonable cause, no member of Christ'
5   4,   1,    2,   1, 881 |           However, for a just and reasonable cause it may be celebrated
6   4,   1,    3,   1, 906 |        unless there is a good and reasonable cause for doing so. ~
7   4,   1,    5,   2, 1003|        their pastoral care. For a reasonable cause, any other priest
8   4,   1,    7,   6, 1125| permission if there is a just and reasonable cause. He is not to grant