अग्नि: शेषं ॠण: शेषं शत्रु शेषं तथैव च
पुन: पुन: प्रवार्धेत तस्मात् शेषं न कारयेत

Agnih shesham runah shesham shatru shesham thathaiva cha
punah punah pravardhet tasmaat shesham na kaarayet

Fire, loan and enemy traces, even if they remain in small amount, they grow back repeatedly, hence finish them without leaving a trace.