Sura al-Isrāʾ 17:28

وَإِمَّا تُعْرِضَنَّ عَنْهُمُ ٱبْتِغَآءَ رَحْمَةٍ مِّن رَّبِّكَ تَرْجُوهَا فَقُل لَّهُمْ قَوْلًا مَّيْسُورًا

wa-immā tuʿriḍanna ʿanhumu ibtighāʾa raḥmatin min rabbika tarjūhā faqul lahum qawlan maysūran

And even if thou hast to turn away from them in pursuit of the Mercy from thy Lord which thou dost expect, yet speak to them a word of easy kindness.