[After the end of the Battle of Kurukṣetra, the Lord said:] The abatement of the earth’s great burden, eighteen akṣauhiṇīs, has now been effected with the help of Droṇa, Bhīṣma, Arjuna and Bhīma. But what is this? There is still the great strength of the Yadu dynasty, born of Myself, which may be a more unbearable burden.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
कियान्भुवोऽयं क्षपितोरुभारो यद्द्रोणभीष्मार्जुनभीममूलैः । अष्टादशाक्षौहिणिको मदंशै- रास्ते बलं दुर्विषहं यदूनाम्
kiyānbhuvo'yaṃ kṣapitorubhāro yaddroṇabhīṣmārjunabhīmamūlaiḥ | aṣṭādaśākṣauhiṇiko madaṃśai- rāste balaṃ durviṣahaṃ yadūnām
SB 3.3.14