According to the scriptures cited, what is the specific duty of a householder regarding food and ascetics?

The scriptures referenced in Chapter 9 describe a strict injunction for householders. The master of the household is instructed to first offer a portion of whatever food is cooked in the home to ascetics and celibates. If a householder consumes food without first making this offering, they begin to incur the need for penance. This rule exists because ascetics are prohibited from cooking for themselves, and therefore, their sustenance is a responsibility that the scriptures have explicitly placed upon householders. Fulfilling this duty is said to achieve one's own welfare.