It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) said: Two people should not whisper to each other excluding a third. And no person should make another get up from his place and then sit there himself.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 6085
Hadith Gradingحکم دارالسلام:إسناده صحيح ، خ: 6288، م: 2183.