يَا بَنِي آدَمَ خُذُوا زِينَتَكُمْ عِنْدَ كُلِّ مَسْجِدٍ وَكُلُوا وَاشْرَبُوا وَلَا تُسْرِفُوا ۚ إِنَّهُ لَا يُحِبُّ الْمُسْرِفِينَ(اعراف:۳۱)

O Children of Adam! Put on your adornment on every occasion of prayer, and eat and drink, but do not waste; indeed, He does not like the wasteful.

Going to the mosque with adornment is a sign of respect for God's servants, for worshipping God, and also serves to attract and encourage others to act. In narrations, the example of adornment includes being a just Imam, being well-groomed, wearing perfume and beautiful clothes during prayer, raising one's hands during bowing and prostration, and participating in Eid and Friday prayers.