A monk must keep to his own pasture ground, his own native beat (pettikavisaya) - viz., the four satipatthánas. Objects, sounds, etc., are passion fraught, inciting to lust. S.v.146f.
The introduction of the sutta contains the Sakunagghi Játaka (q.v.). The name given in the uddána of the Samyutta is the Sakunagghi Sutta.