(7) Fasting
كتاب الصوم
(4b) Chapter: Keeping the Fast free from Imperfection - Section 2
(3) باب تنزيه الصوم - الفصل الثاني
Mishkat al-Masabih 2009 
‘Amir b. Rabi'a said he had seen the Prophet more often than he could count using a toothstick while he was fasting. Tirmidhi and Abu Dawud transmitted it.
وَعَنْ عَامِرِ بْنِ رَبِيعَةَ قَالَ: رَأَيْتُ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ مَا لَا أُحْصِي يَتَسَوَّكُ وَهُوَ صَائِمٌ ". رَوَاهُ التِّرْمِذِيُّ وَأَبُو دَاوُدَ
 ضَعِيف  (الألباني)حكم :
Reference : Mishkat al-Masabih 2009
In-book reference : Book 7, Hadith 53