Using toothpaste whilst fasting

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As-Salaamu-Alaikum wa Rahmatullahi wa Barakatuh. (May Allah's Peace, Mercy and Blessings be upon all of you)
One of our brothers/sisters has asked this question:

Is it permissible to brush one's teeth using toothpaste when fasting? As far as I know, it is permissible as long as the toothpaste is not swallowed. Please give your input on this

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Answer:

Praise be to Allaah.

Shaykh Ibn Baaz (may Allaah have mercy on him) was asked about using toothpaste whilst fasting. He said: there is nothing wrong with that so long as one is careful to avoid swallowing any of it, just as it is prescribed in Islam for the fasting person to use the siwaak (tooth-stick) 

Fataawa al-Shaykh Ibn Baaz, 4/247 

Shaykh Muhammad al-Saalih ibn ‘Uthaymeen said:                             

… This leads us to the question: Is it permissible to use a toothbrush and toothpaste whilst fasting or not? 

The answer is that it is permitted, but it is preferable not to use them because the toothpaste is too strong and may go down into the throat. Instead of doing that during the day, one should do it at night. 

Al-Sharh al-Mumti’ by Ibn ‘Uthaymeen, 6/407, 408

Whatever written of Truth and benefit is only due to Allah's Assistance and Guidance, and whatever of error is of me. Allah Alone Knows Best and He is the Only Source of Strength.
Your brother and well wisher in Islam

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