What is the scriptural duty of a householder regarding food, as explained in the context of Sai Baba's life?

Chapter 9 details a strict scriptural injunction that governs the duties of a householder regarding food. It is mandated that the master of a household should first offer a portion of any cooked food to ascetics and celibates before consuming it themselves. The text warns that if a householder consumes food without first making this offering, they begin to incur the need for penance. This duty is established because ascetics are prohibited from cooking for themselves, making householders responsible for their sustenance. This practice is not just about providing food; it is a way for the householder to achieve their own spiritual welfare and fulfill a sacred obligation, as demonstrated by the devotees who offered alms to Sai Baba.