BUKHARI 6862:
from Ibn ʿUmar —
Messenger of Allah ﷺ said, "A faithful believer remains at liberty regarding his religion unless he kills somebody unlawfully."
البخاري ٦٨٦٢:
عن ابن عمر —
قَالَ رَسُولُ اللَّهِ ﷺ لَنْ يَزَالَ الْمُؤْمِنُ فِي فُسْحَةٍ مِنْ دِينِهِ مَا لَمْ يُصِبْ دَمًا حَرَامًا