وَٱقْصِدْ فِى مَشْيِكَ وَٱغْضُضْ مِن صَوْتِكَ ۚ إِنَّ أَنكَرَ ٱلْأَصْوَٰتِ لَصَوْتُ ٱلْحَمِيرِ
Waqsid fee mashyika waghdud min sawtik; inna ankaral aswaati lasawtul hameer
Saheeh International
And be moderate in your pace and lower your voice; indeed, the most disagreeable of sounds is the voice of donkeys."