| Abu Nasr Sa'd | |
|---|---|
| Sultan of Granada (1st reign) | |
| Reign | 1455–1462 |
| Predecessor | Muhammad XI of Granada |
| Successor | Yusuf V of Granada |
| Sultan of Granada (2nd reign) | |
| Reign | 1463–1464 |
| Predecessor | Yusuf V of Granada |
| Successor | Abu'l-Hasan Ali of Granada |
| Born | Unknown |
| Died | 1465 |
| Dynasty | Nasrides |
| Father | Ali ibn Yusuf |
| Religion | Islam |
Abu Nasr Sa'd ibn Ali ibn Yusuf (Arabic: أبو نصر سعد بن علي بن يوسف, romanized: ʾAbū Naṣr Saʿd ibn ʿAlī ibn Yūsuf), known by the regnal name al-Musta'in bi-llah (Arabic: المستعين بالله, romanized: al-Mustaʿīn bi-ʾllāh, lit. 'he who looks for help to God') and as Ciriza (a corruption of Sidi Sa'd) or Mulay Zad ("Lord Sa'd) to the Christian chroniclers,[1] was the twentieth Nasrid ruler of the Moorish Emirate of Granada in Al-Andalus on the Iberian Peninsula.