What is the ruling on the Hadra, according to the fatwa of Sheikh Muhammad Sa'id al-Buti, if its purpose is the remembrance of Allah while standing, with adherence to the manners and rights of uttering the name of Allah, or without these conditions?

"Remembering Allah while standing is permissible if it adheres to the strictures of Sharia, due to the generality of His words, 'those who remember Allah while standing and sitting and on their sides,' and Muslim's hadith, 'He [the Prophet] used to remember Allah at all times.' However, it should be considered whether the gathering of a group for remembrance while standing is from the guidance of the Salaf, because introducing specific postures in acts of worship is considered an additive innovation (bid'ah idafiyyah)."