ENOfficial
Rukana reported the Prophet (ﷺ) as saying, “The difference between us and the polytheists is that we wear turbans over caps.” Tirmidhi transmitted it, saying this is a gharib tradition whose isnad is not reliable.
Source: sunnah.com
Other translations
Arabic
وَعَن ركَانَة عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «فَرْقُ مَا بَيْنَنَا وَبَيْنَ الْمُشْرِكِينَ الْعَمَائِمُ عَلَى الْقَلَانِسِ» . رَوَاهُ التِّرْمِذِيُّ وَقَالَ: هَذَا حَدِيثٌ حَسَنٌ غَرِيبٌ وَإِسْنَاده لَيْسَ بالقائم
sunnah.com