It is narrated from Sayyiduna Umar (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Do not sit with those who deny predestination, and do not initiate conversation with them."
Hadith Referenceمسند احمد / مسند الخلفاء الراشدين / 206
Hadith Gradingحکم دارالسلام:إسناده ضعيف لجهالة حكيم ابن شريك الهذلي