Quran 31:16-19

يَـٰبُنَىَّ إِنَّہَآ إِن تَكُ مِثۡقَالَ حَبَّةٍ۬ مِّنۡ خَرۡدَلٍ۬ فَتَكُن فِى صَخۡرَةٍ أَوۡ فِى ٱلسَّمَـٰوَٲتِ أَوۡ فِى ٱلۡأَرۡضِ يَأۡتِ بِہَا ٱللَّهُ‌ۚ إِنَّ ٱللَّهَ لَطِيفٌ خَبِيرٌ۬ (١٦) يَـٰبُنَىَّ أَقِمِ ٱلصَّلَوٰةَ وَأۡمُرۡ بِٱلۡمَعۡرُوفِ وَٱنۡهَ عَنِ ٱلۡمُنكَرِ وَٱصۡبِرۡ عَلَىٰ مَآ أَصَابَكَ‌ۖ إِنَّ ذَٲلِكَ مِنۡ عَزۡمِ ٱلۡأُمُورِ (١٧) وَلَا تُصَعِّرۡ خَدَّكَ لِلنَّاسِ وَلَا تَمۡشِ فِى ٱلۡأَرۡضِ مَرَحًا‌ۖ إِنَّ ٱللَّهَ لَا يُحِبُّ كُلَّ مُخۡتَالٍ۬ فَخُورٍ۬ (١٨) وَٱقۡصِدۡ فِى مَشۡيِكَ وَٱغۡضُضۡ مِن صَوۡتِكَ‌ۚ إِنَّ أَنكَرَ ٱلۡأَصۡوَٲتِ لَصَوۡتُ ٱلۡحَمِيرِ (١٩)

[And Luqman said], "O my son, indeed if wrong should be the weight of a mustard seed and should be within a rock or [anywhere] in the heavens or in the earth, Allah will bring it forth. Indeed, Allah is Subtle and Acquainted.O my son, establish prayer, enjoin what is right, forbid what is wrong, and be patient over what befalls you. Indeed, [all] that is of the matters [requiring] determination.And do not turn your cheek [in contempt] toward people and do not walk through the earth exultantly. Indeed, Allah does not like everyone self-deluded and boastful.And be moderate in your pace and lower your voice; indeed, the most disagreeable of sounds is the voice of donkeys."
Surah Luqman:16-19/