ENOfficial
‘Umar reported God’s messenger as saying, “Do not sit with those who believe in freewill and do not address them before they address you." Abu Dawud transmitted it.
Source: sunnah.com
Other translations
Arabic
وَعَنْ عُمَرَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «لَا تُجَالِسُوا أَهْلَ الْقَدَرِ وَلَا تفاتحوهم» رَوَاهُ أَبُو دَاوُد
sunnah.com