The meaning of al-huroof al-muqatta’ah in the Qur’aan

 

what is meant by the ayah Alim Lam Meem, and other similar ayahs in the quran? What have the scholars said regarding them?

Praise
be to Allaah.  

A group of scholars, such as the Rightly-Guided Khaleefahs (may Allaah
be pleased with them), and others among the Sahaabah, Taabi’een and
their followers, refrained from interpreting this aayah and others which
contain al-huroof al-muqatta’ah [letters which appear at the beginning
of some soorahs]. It was not narrated that the Prophet

(peace and blessings of Allaah be upon him) interpreted them, so it
is preferable for us to say Allaah knows best what they mean. But it
was narrated that some of the mufassireen among the Sahaabah, Taabi’een
and their followers did interpret them, and they differed as to their
interpretation. 

Al-Saheeh al-Masboor min al-Tafseer bi’l-Ma’thoor
by Dr Hikmat Basheer, vol 1, p. 94 

Some of the scholars tried to discover the wisdom behind
these letters and said: These letters are mentioned – and Allaah knows
best – at the beginning of soorahs which point to the miraculous nature
of the Qur’aan, which implies that all mankind is unable to match it,
even though it is composed of the letters that they use in their daily
speech. This was the view supported by Shaykh al-Islam Ibn Taymiyah
(may Allaah have mercy on him) and was approved of by Abu’l-Hajjaaj
al-Mazzi (may Allaah have mercy on him). And Allaah is the Source of
strength. May Allaah bless our Prophet Muhammad and his family and companions,
and grant them peace. 

Fataawa al-Lajnah al-Daa’imah, vol. 4, p. 144.