ENOfficial
In another verson of Abu Da’ud is: “If you perform ablution rinse your mouth”.
Source: sunnah.com
Other translations
Arabic
وَلِأَبِي دَاوُدَ فِي رِوَايَةٍ: { إِذَا تَوَضَّأْتَ فَمَضْمِضْ } 1 .
sunnah.com
Bulugh al-Maram
Book 1Hadith Number 39