Hadith no.1:
It was narrated from Abu Hurayrah that the Prophet (peace and blessings of Allaah be upon him) said: “A Surah from the Qur’an containing thirty verses will intercede for a man so that he will be forgiven. It is the Surah Tabaarak Alathi bi yadihi’l-mulk [i.e., Surat al-Mulk].”
[Narrated by al-Tirmidhi, 2891; Abu Dawood, 1400; Ibn Maajah, 3786.]
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Theme and Subject-Matter:
In this Surah the basic teachings of Islam are briefly mentioned. In a most effective way, people are made to realize that the universe in which they live is a well organized and fortified Kingdom in which no fault, weakness or flaw can be detected no matter how hard they may try. This Kingdom has been created from nothing and brought into existence by Allah Almighty Himself. All of the powers of controlling, administering and ruling it are also entirely in Allah's hands . This system is not created without purpose and people have been sent here for a test. In this test they can succeed only by their righteous deeds and conduct.
Source: Malik Al-Qur'an Translation