Muhammad says the minds of women are deficient

In Sahih al-Bukhari, the most canonical hadith collection:

Volume 3, Book 48, Number 826:
Narrated Abu Said Al-Khudri:

The Prophet said, "Isn't the witness of a woman equal to half of that of a man?" The women said, "Yes." He said, "This is because of the deficiency of a woman's mind."