ENOfficial
Jundub reported God’s Messenger as saying, “The punishment given to a magician is a stroke with the sword.” Tirmidhi transmitted it.
Source: sunnah.com
Other translations
Arabic
وَعَنْ جُنْدُبٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «حَدُّ السَّاحِرِ ضَرْبُهُ بِالسَّيْفِ» . رَوَاهُ التِّرْمِذِيّ
sunnah.com