Original sentence: In past times, it was used by some Sunni Muslims to refer to other Shi'a who refused to follow Zayd ibn Ali.It is thought that the usage of the term came from Zayd ibn Ali himself who exclaimed "You have abandoned me (rafadtumuni)" to his own followers who retracted their oath of allegience on hearing Zayd ibn Ali declare his love for Abu Bakr and Umar.The word rafida (and also the Arabic non-collective singular form rafidi رافضي) is currently used as a derogatory term for Shi'a Muslims by Salafi Muslims who refuse to accept Shi`a Islam as being a valid form of Islam
Edited sentence: In past times, it was used by some Shi'a Muslims to refer to other Shi'a who refused to follow Zayd ibn Ali.It is thought that the usage of the term came from Zayd ibn Ali himself who exclaimed "You have abandoned me (rafadtumuni)" to his own followers who retracted their oath of allegiance on hearing Zayd ibn Ali declare his love for Abu Bakr and Umar.The word rafida (and also the Arabic non-collective singular form rafidi رافضي) is currently used as a derogatory term for Shi'a Muslims by Sunni Muslims who refuse to accept Shi`a Islam as being a valid form of Islam