The reason women are exempt from time-triggered positive commandments is that a woman is subjugated to her husband for the fulfillment of his needs. If she were obligated to perform time-triggered commandments, it might happen that just when she is performing the commandment her husband will command her to do his bidding. If she were to fulfill the command of the Creator and ignore his [her husband's] command, woe to her from her husband! And if she were to fulfill his command and ignore that of the Creator, woe to her from her Maker! Therefore the Creator exempted her from his commandments, so that she can be at peace with her husband.

But it seems to us to be rather much more likely that the Torah did not impose these mizvot on women because it did not consider them necessary to be demanded from women. All mizvot shehazman geraman are meant, by symbolic procedures, to bring certain facts, principles, ideas, and resolutions, afresh to our minds from time to time to spur us on afresh and to fortify us to realize them to keep them. God's Torah takes it for granted that our women have greater fervour and more faithful enthusiasm for their God-serving calling, and that this calling runs less danger in their case than in that of men from the temptations which occur in the course of business and professional life. Accordingly it does not find it necessary to give women these repeated spurring reminders to remain true to their calling, and warnings against weaknesses in their business life.