Sheba 34:50. Juz 22, page 434.
قُلْ إِن ضَلَلْتُ فَإِنَّمَآ أَضِلُّ عَلَىٰ نَفْسِى ۖ وَإِنِ ٱهْتَدَيْتُ فَبِمَا يُوحِىٓ إِلَىَّ رَبِّىٓ ۚ إِنَّهُۥ سَمِيعٌ قَرِيبٌ٥٠Say: If I err, I err only to my own loss, and if I am rightly guided it is because of that which my Lord hath revealed unto me. Lo! He is Hearer, Nigh.
Saba 34:50, translated by Marmaduke Pickthall