astaghfirullah al azeem, dua for forgiveness - istighfar dua
 

Ask forgiveness of the great God who has no God but the living Qayyum and repent to him the voice of magnificence
It is proven from the Prophet (peace and blessings of Allaah be upon him) that he said: Whoever said: "Ask forgiveness of Allah the Great, who has no god but the living and the living, and repent to him." recited by Al-Termethy, and corrected by Al-Albani

https://m.youtube.com/watch?v=fKUxw2pmwsw