وَٱقْصِدْ فِى مَشْيِكَ وَٱغْضُضْ مِن صَوْتِكَ ۚ إِنَّ أَنكَرَ ٱلْأَصْوَٰتِ لَصَوْتُ ٱلْحَمِيرِ
Waqsid fee mashyika waghdud min sawtik; inna ankaral aswaati lasawtul hameer
Go at a moderate pace and lower your voice, for the ugliest of all voices is the braying of asses.’
Walk at a measured pace, and lower your voice — for the harshest of sounds is the braying of donkeys.