كتاب الصيام
Read the English translation first, with the original Arabic directly underneath.
It was narrated from ‘Aishah that the Messenger of Allah (ﷺ) said:
“One of the best actions of the fasting person is using the tooth stick.”
مِنْ خَيْرِ خِصَالِ الصَّائِمِ السِّوَاكُ