Ash-Shu'ara 26:136

قَالُوا۟ سَوَآءٌ عَلَيْنَآ أَوَعَظْتَ أَمْ لَمْ تَكُن مِّنَ ٱلْوَٰعِظِينَ

Qālū sawāon ʿalaynā awaʿaẓta am lam takun mina l-wāʿiẓīna

They said, "It is all the same to us whether you advise or are not of the advisors.