It is narrated from Nafi‘ that a man came to Sayyiduna Abdullah bin Umar (may Allah be pleased with them) and said: So-and-so sends you greetings of peace. Sayyiduna Ibn Umar (may Allah be pleased with them) said: I have come to know that he has introduced an innovation (bid‘ah); if he has done so, then do not convey my greetings to him.