" أُمِرْتُ أَنْ أُقَاتِلَ النَّاسَ حَتَّى يَقُولُوا لاَ إِلَهَ إِلاَّ اللَّهُ فَمَنْ قَالَهَا فَقَدْ عَصَمَ مِنِّي نَفْسَهُ وَمَالَهُ إِلاَّ بِحَقِّهِ وَحِسَابُهُ عَلَى اللَّهِ "
Abu Hurairah narrated that the Messenger of Allah (ﷺ) said: "I have been commanded to fight the people until they say La ilaha illallah (there is non worthy or worship except Allah). Whoever says it, his life and his property are safe from me, except for its right, and his reckoning will be with Allah."