Translation:

1. Alif Lam Ra. These are the Symbols (or Verses) of the Perspicuous Book.

Notes (Tafseer)

1627. For the meaning of these letters, see App. I.

1628. Ayat: Signs and verses of the Our-Sn. The whole of Joseph's story is a Sign or a Miracle-a wonder-working exposition of the Plan and Purpose of Allah.

1629. Cf. v. 15, n. 716. The predominant meaning of Mubin here is: one that explains or makes things clear.