Āśrama-dharma: Duties of the Four Life-Stages (आश्रमधर्मः)
तेषां शुश्रूषणाच्चैव महत् सुखमवाप्रुयात् । शूद्र एतान् परिचरेत् त्रीन् वर्णाननुपूर्वश:,वह उन तीनों वर्णोकी सेवासे ही महान् सुखका भागी हो सकता है। अतः शूद्र इन तीनों वर्णोंकी क्रमश: सेवा करे
teṣāṁ śuśrūṣaṇāc caiva mahat sukham avāpnuyāt | śūdra etān paricaret trīn varṇān anupūrvaśaḥ ||
ভীষ্মে ক’লে—তেওঁলোকৰ প্ৰতি ভক্তিভাৱে শুশ্ৰূষা কৰিলে মহৎ কল্যাণ লাভ হয়; সেয়ে শূদ্ৰে ব্ৰাহ্মণ, ক্ষত্ৰিয় আৰু বৈশ্য—এই তিন বৰ্ণক ক্ৰমে সেৱা কৰক।
भीष्म उवाच
The verse teaches that devoted service (śuśrūṣā) to the three higher varnas is presented as the Shudra’s prescribed duty, and that such service is said to yield great welfare and happiness.
In the Shanti Parva’s instruction on dharma, Bhishma is advising Yudhishthira about duties associated with social orders (varna-dharma), specifically describing the Shudra’s role as service to Brahmanas, Kshatriyas, and Vaishyas in proper order.