question #3 Sahih al-Bukhari 5481, Book 72, Hadith 7 : What is the significance of the term ‘Qirats’ in the context of Islamic teachings on rewards and deeds?

I heard the Prophet (ﷺ) saying, “If someone keeps a dog neither for hunting, nor for guarding livestock,
the reward (for his good deeds) will be reduced by two Qirats per day.”