SB 11.7.2

mayā niṣpāditaṁ hy atra
 deva-kāryam aśeṣataḥ
yad-artham avatīrṇo ’ham
 aṁśena brahmaṇārthitaḥ
Synonyms: 
mayā — by Me; niṣpāditam — accomplished; hi — certainly; atra — within this world; deva-kāryam — work for the benefit of the demigods; aśeṣataḥ — completely, with nothing remaining; yat — for whose; artham — sake; avatīrṇaḥ — incarnated; aham — I; aṁśena — with My plenary portion, Baladeva; brahmaṇā — by Lord Brahmā; arthitaḥ — being prayed for.
Translation: 
Answering the prayer of Lord Brahmā, I descended within this world along with My plenary portion, Lord Baladeva, and performed various activities on behalf of the demigods. I have now completed My mission here.