Mahabharata — Anushasana Parva, Shloka 142
ज्येष्ठ-कनिष्ठ-धर्मः — Duties of Elders and Juniors
Anuśāsana-parva 108
नरेश्वर! ब्राह्मणोंकी पूजा, देवताओंको नमस्कार और गुरुजनोंको प्रणाम स्नानके बाद ही करने चाहिये ।।
Nareśvara! brāhmaṇānāṁ pūjā, devatānāṁ namaskāraḥ, gurujanānāṁ praṇāmaś ca snānād eva kartavyaḥ. Animantrito na gacchet yajñaṁ gacchet darśakaḥ. Anarcite hānāyuṣyaṁ gamanaṁ tatra, Bhārata.
毗湿摩说道：“大王啊，敬奉婆罗门、礼敬诸天、顶礼师长尊老，皆当在沐浴之后方可为之。未受邀请，不可随意前往他处；然而，若仅为观礼，亦可不请自至祭祀（yajña）之所。噢婆罗多，前往不受尊重之地，会折损寿命。”
भीष्म उवाच
Educational Q&A
Maintain ritual and social propriety: perform acts of reverence (to Brahmins, deities, and elders) after bathing; avoid going uninvited, with the limited exception of attending a yajña as a mere observer; and do not go where one will not be respected, as such association is said to be life-diminishing.
In the Anuśāsana Parva, Bhīṣma continues his instruction to the Kuru king on dharma and right conduct, giving practical rules of daily etiquette—when to offer worship and salutations, when it is appropriate to visit, and what kinds of places should be avoided.