Narrated Abu Hurairah:
that the Prophet (ﷺ) said: "Indeed there is a Surah in the Qur'an of thirty Ayat, which intercedes for a man until he is forgiven. It is [Surah] Tabarak Alladhi Biyadihil-Mulk." (ES)
English reference (ES): Vol. 5, Book 42, Hadith 2891 (ES)
Arabic reference (ES): Book 45, Hadith 3134 (ES)