The Prophet ﷺ said, "There is a surah in the Quran of thirty verses that interceded for a man until he was forgiven. It is 'Blessed is He in whose hand is the dominion' [Mulk 67:1]."
إن سورة من القرآن ثلاثون آية شفعت لرجل حتى غفر له هي: {تبرك الذي بيده الملك}.
It was narrated by Abu Dawud (1400), Tirmidhi (2891), and Ibn Majah (3786), and Ibn Hibban (787) and Hakim (1/565) both graded it sahih, all of them through the route of Shuba, from Qatada, from Abbas Jushami, from Abu Hurairah, and he related it. Its chain is hasan because of Abbas Jushami, whose father's name was Abdullah. Ibn Hibban mentioned him among his reliable narrators and included his hadith in his Sahih, Hakim also graded it sahih, and Tirmidhi graded it hasan. He belongs to the Followers generation, and a group of narrators reported from him, so there is no harm in grading his hadith hasan, especially in matters of virtues rather than legal rulings.As for what has been transmitted from Bukhari, that Jushami did not mention hearing directly, I did not find this in Tarikh (4/7), and if it is found in some copies, that goes back to his own methodology. Jushami was not accused of concealment (tadlis), so his use of "from" is taken to indicate direct transmission, as is the view of the majority.On this subject there is also what was narrated from Ali bin Abu Talib, as a marfu report, "Whoever recites the Quran and memorizes it, permitting what it makes permissible and forbidding what it makes forbidden, Allah will admit him into Paradise through it, and he will be granted intercession for ten members of his household, all of whom would otherwise have deserved the Fire." This was narrated by Tirmidhi (2905), and this is his wording, and Ibn Majah (216), both through the route of Hafs bin Sulayman Abu Umar, from Kathir bin Zazan, from Asim bin Damra, from Ali bin Abu Talib, and he related it. Ibn Majah abridged it. Through this same route it was also narrated by Abdullah bin Ahmad in the Musnad of his father (1268), and Ajurri in Shariah (816).Hafs bin Sulayman Asadi, Abu Umar, despite his mastery in recitation, was daif in hadith. Bukhari said, "They abandoned him." Muslim said, "Abandoned." Ibn Main, Ibn Madini, Nasai, Hakim, Ibn Adi, and others criticized him. Imam Ahmad had a favorable opinion of him, saying, "Salih," and perhaps he meant by this his integrity in religion, and this is due to his stature in the field of recitations. His teacher, Kathir bin Zazan, is majhul (unknown). Dhahabi said in Mizan, "Kathir bin Zazan, from Asim bin Damra, has a munkar hadith." Tirmidhi said, "This is a gharib hadith, we do not know it except through this route, and its chain is not sahih, and Hafs bin Sulayman is considered daif in hadith." End of quote.