(V.6:121) Narrated by Ahmad, At-Tirmidhi, and Ibn Jarîr: Once while Allâh’s Messenger صلى الله عليه وسلم was reciting the Verse (9:31) ‘Adî bin Hâtim said, "O Allâh’s Messenger! They do not worship them (i.e., rabbis and monks)." Allâh’s Messenger صلى الله عليه وسلم said: "They certainly do. They (i.e., rabbis and monks) made lawful things as unlawful, and unlawful things as lawful, and they (i.e. Jews and Christians) followed them; and by doing so, they really worshipped them." (Tafsir At-Tabari ).