A video of an imam appearing to call for the murder of Jews in a sermon during Friday prayers at a Copenhagen mosque has caused outrage in Denmark.
Mundhir Abdallah was reported to police after being filmed citing in Arabic a hadith - a teaching of the Prophet Muhammad - considered anti-Semitic.
The hadith says the Day of Judgement "will not come unless the Muslims fight the Jews and the Muslims kill them".
A Jewish community leader said his words were a "thinly-veiled" threat.
Videos of the sermon were posted on YouTube and Facebook by the Al-Faruq Mosque on Sunday, although Mr Abdallah reportedly gave it on 31 March.