Hadith 17:162
Waki' narrated to us, from Abdullah bin Amir, from al-Zuhri, that a man greeted the Prophet three times, but he did not return the greeting to him. It was said to him, "Why?" He said, "Indeed, he is a two-faced man."
حدثنا وكيع عن عبد الله بن عامر عن الزهري أن رجلا سلم على النبي ثلاث مرات فلم يرد عليه فقيل له لم فقال إنه ذو وجهين