Surah Saba, Verse 50
قُلْ إِن ضَلَلْتُ فَإِنَّمَآ أَضِلُّ عَلَىٰ نَفْسِى ۖ وَإِنِ ٱهْتَدَيْتُ فَبِمَا يُوحِىٓ إِلَىَّ رَبِّىٓ ۚ إِنَّهُۥ سَمِيعٌۭ قَرِيبٌۭ
Translation — Sahih International
Say, "If I should err, I would only err against myself. But if I am guided, it is by what my Lord reveals to me. Indeed, He is Hearing and near."
Source
Kur'an-ı Kerim, Sebe' Suresi 34:50
https://kuran.diyanet.gov.tr/mushaf/kuran-meal-2/34-suresi-50-ayet