Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 49
Sanskrit:
चत्वारोऽस्य भुजा: शिष्टा भविष्यत्यजरामर: ।पार्षदमुख्यो भवतो न कुतश्चिद्भयोऽसुर: ॥ ४९ ॥
ITRANS:
catvāro ’sya bhujāḥ śiṣṭābhaviṣyaty ajarāmaraḥpārṣada-mukhyo bhavatona kutaścid-bhayo ’suraḥ
Translation:
This demon, who still has four arms, will be immune to old age and death, and he will serve as one of your principal attendants. Thus he will have nothing to fear on any account.