Luqman 31:19 واقصد في مشيك واغضض من صوتك ان انكر الاصوات لصوت الحمير ١٩

This is useful advice which Allah tells us Luqman gave, so that people may follow it and take it as"See the full heading "This is useful advice which Allah tells us Luqman gave, so thatpeople may follow it and take it as a good example

He said:

يبُنَىَّ إِنَّهَآ إِن تَكُ مِثْقَالَ حَبَّةٍ مِّنْ خَرْدَ