The ruling on using toothpaste for the fasting person
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Question: Is it permissible for a fasting person to use toothpaste while fasting during the day in Ramadan?
Answer: There is no harm in that, provided one is careful not to swallow any of it. It is also prescribed for the fasting person to use the miswak at the beginning and end of the day. Some scholars held that using the miswak after the sun passes its zenith is disliked, but that is the weaker opinion. The correct view is that it is not disliked, based on the generality of the Prophet’s (peace and blessings be upon him) statement:Sunan an-Nasa'i 5Sahih (Darussalam) Al-Nasa'i narrated it with a sound chain from Aisha (may Allah be pleased with her). And based on his (peace and blessings be upon him) statement: Sunan Abi Dawud 47Sahih (Al-Albani) Agreed upon by al-Bukhari and Muslim. This includes the Dhuhr and Asr prayers, which are after the sun passes its zenith. And success is from Allah.
Answer: There is no harm in that, provided one is careful not to swallow any of it. It is also prescribed for the fasting person to use the miswak at the beginning and end of the day. Some scholars held that using the miswak after the sun passes its zenith is disliked, but that is the weaker opinion. The correct view is that it is not disliked, based on the generality of the Prophet’s (peace and blessings be upon him) statement:
Siwak is a means of purification for the mouth and is pleasing to the Lord.
السواك مطهرة للفم مرضاة للربWere it not hard on my ummah, I would order them to use the tooth-stick at the time of every prayer.
لولا أن اشق على أمتي لأمرتهم بالسواك عند كل صلاة
Source
binbaz.org.sa
The Arabic text is copied verbatim from the original source, without any edits.