It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: When you meet Jews and Christians on the road, do not initiate the greeting of peace with them, and force them towards the narrowest part of the road.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 7617