Srimad-Bhagavatam: Canto 11 - Chapter 1 - Verse 9

Sanskrit:

यन्निमित्त: स वै शापो याद‍ृशो द्विजसत्तम ।कथमेकात्मनां भेद एतत् सर्वं वदस्व मे ॥ ९ ॥

ITRANS:

yan-nimittaḥ sa vai śāpoyādṛśo dvija-sattamakatham ekātmanāṁ bhedaetat sarvaṁ vadasva me

Translation:

King Parīkṣit continued inquiring: What was the motive for this curse? What did it consist of, O purest of the twice-born? And how could such a disagreement have arisen among the Yadus, who all shared the same goal of life? Please tell me all these things.

Purport:

Ekātmanām means that the Yadus all shared the same opinion, namely that Kṛṣṇa, the Supreme Personality of Godhead, was the goal of their life. Therefore, Parīkṣit Mahārāja could not see any obvious reason for such a destructive quarrel among the members of the Yadu dynasty, and he was anxious to know the actual cause.