18:24
إِلَّآ أَن يَشَآءَ ٱللَّهُ ۚ وَٱذْكُر رَّبَّكَ إِذَا نَسِيتَ وَقُلْ عَسَىٰٓ أَن يَهْدِيَنِ رَبِّى لِأَقْرَبَ مِنْ هَـٰذَا رَشَدًا
illā an yashāa l-lahu wa-udh'kur rabbaka idhā nasīta waqul ʿasā an yahdiyani rabbī li-aqraba min hādhā rashadan
without adding, ‘God willing,’ and, whenever you forget, remember your Lord and say, ‘May my Lord guide me closer to what is right.’
Except (with the saying), "If Allâh will!" And remember your Lord when you forget and say: "It may be that my Lord guides me unto a nearer way of truth than this."