Umayyad tradition of cursing Ali

The Umayyad tradition of cursing Ali was performed in state-controlled mosques in Syria for a period of approximately 65 years from c.657 to c.717 CE.

The cursing finally came to an end with the fall of the Umayyad dynasty.

Ali was cursed by official Umayyad decree as part of Friday congregational prayers from all the mosques of Umayyad caliphate except the town of Sistan. The companion Sa'd ibn Abi Waqqas refused to comply with the order of cursing Ali, giving three reasons:

Umar Bin Abdul Aziz replaced the cursing of Ali on the minbar during Friday prayers with verse 15 from Sura 59 (al-Hashr) and verse 19 of Sura 90 (al-Nahl) from the Qur'an.

...
Wikipedia