Was it reported that inserting a finger into the mouth is part of gargling?

Question:
Honorable Shaykh, the questioner says: Was it reported from the Messenger of Allah (peace and blessings be upon him) that during gargling in the ablution, he would insert his finger into his mouth and clean his teeth with it (peace and blessings be upon him)?

Answer:
I do not know of that. However, as has passed you, it is recommended to use the miswak before the ablution. [The Prophet said:] "If it were not for the hardship it would cause my Ummah, I would have ordered them to use the miswak with every prayer," and in another narration, with every ablution. So one uses the miswak before the ablution, before the gargling; one uses the miswak first. And the Messenger (peace and blessings be upon him), when he woke up from his sleep, would scrub his mouth with the miswak. He would start with the miswak and then gargle. If he inserts his finger, there is no harm in that, but we do not say that this is a sunnah (recommended practice) or that this was reported from the Prophet (peace and blessings be upon him) This is it. Yes.