As Salamu Alaikum wa Rahmatullahi wa Barakatuhu
“If it was not for the fact that my nation would not be able to bear it. I would have ordered them to use Siwak before every Prayer.” (Al-Bukhari and Muslim)
“Whenever the Prophet (Sallallahu Alayhi wa Sallam) would wake up at night, he would clean his mouth from Siwak.”(Al-Bukhari and Muslim)
“Siwak cleans the mouth and pleases the Lord.” (Al-Bukhari)
“Whenever the Prophet (Sallallahu Alayhi wa Sallam) would enter his house, he would first use the Siwak.” (Muslim)
A few Important Points
The best type of Siwak is made from the Arak Trees. Further, one should not use an unknown tree for Siwak for it might be poisonous.
Siwak should be used moderately, because it might cause the coating of the teeth to wear away and thus the teeth will be susceptible to the hot vapors or gasses that ascend from the stomach and to all kinds of dirt.
When the Siwak is used moderately, it will polish the teeth, strengthen the roots of the teeth, help the tongue, prevent plaque, perfume the breath, clear the mind and strengthen the appetite.
The best way to use the Siwak is by soaking it in rose water. Also the best type of Siwak is made from walnut stems.
The author of At-Taysir said, “It was said that when one uses the Siwak every five days, it will clear the head, sharpen the senses and alert the mind.”
Siwak is beneficial for many reasons, such as perfuming the breath, strengthening the gingival, clearing the phlegm and the sight and the preventing cavities.
It also preserves the heath of the stomach, clears the voice, helps the digestion process, helps make the speech clear and encourages one to recite the Qur'an, remember Allah and pray.
Siwak also fights sleepiness, pleases the Lord, delights the angels and increases the number of good deeds.
Siwak is preferred at any time, especially before the Prayer, ablution, when waking up and when the mouths foul odor. It is also preferred for those who are fasting and all other people at all times.
There are Ahadith that allow this practice for those who are fasting, because it is beneficial for them and pleases the Lord.
Excerpt: Healing with the Medicine of the Prophet (Sallallahu Alayhi wa Sallam) –Ibn Qayyim Pages 280-282
Wa Alaikum Salam wa Rahmatullahi wa Barakatuhu
Our Lord! Let not our hearts deviate (from the truth) after You have guided us, and grant us Mercy from You. Truly, You are the Bestower." (Surah Al-Imran 3:8)