ENOfficial
‘Abdallah b. Zaid said that the Prophet (ﷺ) performed each detail of his ablution twice. Bukhari transmitted it.
Source: sunnah.com
Other translations
Arabic
وَعَنْ عَبْدِ اللَّهِ بْنِ زَيْدٍ: أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ تَوَضَّأَ مَرَّتَيْنِ مَرَّتَيْنِ. رَوَاهُ البُخَارِيّ
sunnah.com