Is using the Siwak (tooth stick) recommended upon waking for night prayer?
Chapter on the Times When Prayer is Prohibited
Al-Mughni
Book of Prayer
Primary text
It is recommended to use the Siwak upon waking before performing ablution for the night prayer. Hudhayfah narrated that the Prophet peace be upon him would clean his mouth with the Siwak when rising for night prayer. This practice is confirmed by narrations from Ibn Abbas and Aisha, indicating it was a consistent action before purification and the performance of the prayer, which often consisted of nine Rak'ahs.