Some people told the Ksav Sofer zt'l that they chose to daven b'yachidus (without a minyan) because they found that tefillah b'tzibur takes away from their parnassah. They explained that when they daven b'yachidus, they can daven whenever they want. But a minyan has a set time, and it might be at a very busy and lucrative part of the day.
(We add that when one davens with a minyan, it takes time to get to the minyan, to wait for the minyan to begin, chazaras hashatz, etc. Therefore, some people think davening b'yachidus is better for their livelihood. But they are mistaken. One won't lose parnassah from doing Hashem’s will. The Midrash (Devarim Rabba, Re'eh) states, לי שומע אדם אין ומפסיד, "No one ever listened to Me and lost out.”)
The Ksav Sofer zt'l told them that this lesson is alluded to in this week's parashah. It states (11:13) נפשכם ובכל לבבכם בכל ולעבדו, "to serve Him with all your heart and with all your soul." The pasuk is written in plural tense, and Rashi writes that it refers to a tzibur. The Ksav Sofer adds that the pasuk refers to tefillah b'tzibur, davening with a minyan.
The next words are ארצכם מטר ונתתי בעתו, "I will give the rain of your land at its time." The Ksav Sofer explains that this indicates that parnassah comes from being cautious about davening with a minyan.
The Ksav Sofer writes, "It is a great mitzvah, and it is precious to Hashem when one davens with a minyan. Therefore, it states נפשכם ובכל לבבכם בכל in plural, to tell us to daven together with a community. When you do so, the Torah promises ארצכם מטר ונתתי בעתו, 'I will give the rain of your land at its time.'"
So, it is the opposite of what people think. They fear that davening with a minyan will minimize their parnassah when it actually increases it. The Ksav Sofer writes, "Tefillah with a minyan takes a person away from his work. When one davens b'yachidus, he davens whenever he wants, but he can't do so when he davens with a tzibur. However, Hakadosh Baruch Hu won't allow financial losses due to this. Hashem will send His brachos, and he will succeed with everything."
