Bhagavatapurana 3.3.17

3.3.17

uttarāyāṃ dhṛtaḥ pūror vaṃśaḥ sādhv-abhimanyunā /
sa vai drauṇy-astra-sampluṣṭaḥ punar bhagavatā dhṛtaḥ //

17. The thread of the "Puru race" that had been well treasured up (securely placed) in Uttara by Abhimanyu was cut by the missile (Astra) of Drona's son, but it was restored and kept from extinction by the glorious Lord.