Wa anis taghfiroo Rabbakum summa toobooo ilaihi yumatti'kum mataa'an hasanan ilaaa ajalim musammanw wa yu'ti kulla zee fadlin fadlahoo wa in tawallaw fa inneee akhaafu 'alaikum 'azaaba Yawmin Kabeer
"(And to preach thus), 'Seek ye the forgiveness of your Lord, and turn to Him in repentance; that He may grant you enjoyment, good (and true), for a term appointed, and bestow His abounding grace on all who abound in merit! But if ye turn away, then I fear for you the penalty of a great day:
Transliteration: Wa anis taghfiroo Rabbakum summa toobooo ilaihi yumatti'kum mataa'an hasanan ilaaa ajalim musammanw wa yu'ti kulla zee fadlin fadlahoo wa in tawallaw fa inneee akhaafu 'alaikum 'azaaba Yawmin Kabeer
Translation (Yusuf Ali): "(And to preach thus), 'Seek ye the forgiveness of your Lord, and turn to Him in repentance; that He may grant you enjoyment, good (and true), for a term appointed, and bestow His abounding grace on all who abound in merit! But if ye turn away, then I fear for you the penalty of a great day:
This is verse 3 of Surah Hud (هُود, meaning "Hud"), the 11th surah of the Quran. It is a Meccan surah with 123 total verses.
This verse is referenced in the following Quranic topics: Day of Judgement, Who enters Paradise.