It is sunnat to use the Miswaak at the time of every Wudhu.
The sunnat method of holding the Miswaak according to what Hazrat Abdullah Ibne Mas’ood Radiallahu Anhu has narrated is as follows:
Place the small finger of the right hand below the Miswaak.
Place the thumb below the head of the Miswaak.
The remaining three fingers will be placed above.
(Shami‐ Vol. 1, pg 85)
- Abu Dawood
- Vol. 1
- pg 8 (at.Targheeb wat Tarheeb)