Sahih Al Bukhari – Book of Divorce
Volumn 007, Book 063, Hadith Number 216A.
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Narated By Abu Huraira : Abul Qasim (the Prophet) said, "There is an hour (or a moment) of particular significance on Friday. If it happens that a Muslim is offering a prayer and invoking Allah for some good at that very moment, Allah will grant him his request." (The sub-narrator placed the top of his finger on the palm of the other hand between the middle finger and the little one.)
