 वन्द्यास्ते तु तपस्सिद्धास्तपसा वीतकल्मषाः।प्रष्टव्या चापि सीतायाः प्रवृत्तिर्विनयान्वितैः।। 
 They deserve  your reverence since they are accomplished ascetics.They are cleansed of sins by their penance.You should be polite when you ask them for information  about Sita.  