Al An'am, 90 Ayah
6:90
أُوْلَٰٓئِكَ ٱلَّذِينَ هَدَى ٱللَّهُۖ فَبِهُدَىٰهُمُ ٱقۡتَدِهۡۗ قُل لَّآ أَسۡـَٔلُكُمۡ عَلَيۡهِ أَجۡرًاۖ إِنۡ هُوَ إِلَّا ذِكۡرَىٰ لِلۡعَٰلَمِينَ ٩٠
'Ūlā'ika Al-Ladhīna Hadá Al-Lahu ۖ Fabihudāhumu Aqtadihi ۗ Qul Lā 'As'alukum `Alayhi 'Ajrāan ۖ 'In Huwa 'Illā Dhikrá Lil`ālamīna
Those are the ones whom Allah has guided, so from their guidance take an example. Say, "I ask of you for this message no payment. It is not but a reminder for the worlds."