In which Surah is "Innamal mu'minuna ikhwatun" (The believers are but brothers) found?

1. Surah Al-Baqarah
2. Surah Al-Imran
3. Surah Al-Hujurat
4. None of these

The ayah “Innamal mu’minuna ikhwatun” (The believers are but brothers) is found in Surah Al-Hujurat (49:10).