What is the ruling on moving the finger during the Tashahhud when uttering "al-Tahiyyat" instead of "Allah" by mistake? Is this considered an addition or a reduction that necessitates Sujud al-Sahw? Does the ruling that a person suffering from incontinence (sahib al-sils) is not required to perform a new ablution for each prayer apply to a woman suffering from incontinence of discharge (sahibat sils al-rutubah) if she performs ablution without Istinja' and her ablution remains valid for the next obligatory prayer unless invalidated by another factor?

Regarding moving the finger when uttering the name of God (Allah): The Hanbali school of thought permits it. If you perform it and move your finger out of place, or if you omit moving it in its proper place, there is nothing against you, and your prayer remains valid. Slight movement does not affect the validity of the prayer, nor does omitting a Sunnah. Prostration of forgetfulness (sujud al-sahw) is recommended for one who omits a Sunnah due to forgetfulness, not intentionally. As for the continuous discharge of fluid (sals al-rutubah), it is like continuous urination (sals al-bawl) – a perpetual impurity. Those who do not consider ablution invalidated by continuous discharge that persists most of the time – such as the Malikis – hold that nothing is required of you.