What is the authenticity of Umm Hani's hadith: "Glorify Allah a hundred times, for it is equal to a hundred freed slaves..."?

The hadith, "Say 'Subhanallah' a hundred times; it is equivalent to freeing a hundred slaves," has generally weak chains of transmission (isnaad). It is not authentically reported from Umm Hani', as stated by Imam Al-Bukhari. Its strongest chain of transmission is also weak due to narrator inconsistencies and a broken chain. Despite the weakness of this hadith, its general meaning is supported by other evidence. Dhikr (remembrance of Allah) is an easy door for those who find supererogatory acts difficult, and it competes with the Sadaqa (charity) and financial offerings of the wealthy, as mentioned in the hadith, "Your tongue will remain moist with the remembrance of Allah," and the hadith about the poor who came to the Prophet (peace and blessings of Allah be upon him).