﴿ لَّسْتَ عَلَيْهِم بِمُصَيْطِرٍ ﴾

“thou canst not compel them [to believe].”

you are not a taskmaster over them a variant reading for musaytir has musaytir that is to say not one who has been given authority over them — this was revealed before the command to struggle against the disbelievers.