SB 6.15.17
sri-angira uvaca
aham te putra-kamasya
putrado ’smy angira nrpa
esa brahma-sutah saksan
narado bhagavan rsih
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
Angira said: My dear King, when you desired to have a son, I approached you. Indeed, I am the same Angira Rsi who gave you this son. As for this rsi, he is the great sage Narada, the direct son of Lord Brahma.