Abu Hurairah (May Allah be pleased with him) reported:
I heard the Messenger of Allah (ﷺ) saying, "There is a Surah in the Qur'an which contains thirty Ayat which kept interceding for a man until his sins are forgiven. This Surah is 'Blessed is He in Whose Hand is the dominion.' (Surat Al-Mulk 67)."[At-Tirmidhi and Abu Dawud].
App reference: Book 9, Hadith 26
Arabic/English book reference: Book 9, Hadith 1016