Silsilat al-Ahadith al-Sahihah

It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, that he said: The Messenger of Allah, peace and blessings be upon him, said: "When you meet the polytheists (and according to another narration, the People of the Book), do not initiate the greeting of peace with them, and if you encounter them on a road, force them to the narrowest part of it."