The philosophy of decoration in Islamic architecture
Prophet Muhammad (PBUH) not only totally ignored the subject of decoration and ornamentation while he was building and while he was overseeing others who were building during his lifetime, but he also, at a first glance, denounced the matter in several of his hadiths (traditions). In one of them, he is reported to have said that whenever a people’s performance (‘amal) weakens, they then start decorating their mosques.