Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 10-11
Sanskrit:
उपहूतास्तथा चान्ये द्रोणभीष्मकृपादय: ।धृतराष्ट्र: सहसुतो विदुरश्च महामति: ॥ १० ॥ब्राह्मणा: क्षत्रिया वैश्या: शूद्रा यज्ञदिदृक्षव: ।तत्रेयु: सर्वराजानो राज्ञां प्रकृतयो नृप ॥ ११ ॥
ITRANS:
upahūtās tathā cānyedroṇa-bhīṣma-kṛpādayaḥdhṛtarāṣṭraḥ saha-sutoviduraś ca mahā-matiḥ
Translation:
O King, others who were invited included Droṇa, Bhīṣma, Kṛpa, Dhṛtarāṣṭra with his sons, the wise Vidura, and many other brāhmaṇas, kṣatriyas, vaiśyas and śūdras, all eager to witness the sacrifice. Indeed, all the kings came there with their entourages.