Sahih al-Bukhari Book 68, Hadith 43
Abul Qasim (the Prophet (ﷺ) ) 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.)
Allah's Messenger (ﷺ) performed the Tawaf (around the Ka`ba while riding his camel, and every time he reached the corner (of the Black Stone) he pointed at it with his hand and said, "Allahu Akbar." (Zainab said: The Prophet (ﷺ) said, "An opening has been made in the wall of Gog and Magog like this and this," forming the number 90 (with his thumb and index finger).
During the lifetime of Allah's Messenger (ﷺ) a Jew attacked a girl and took some silver ornaments she was wearing and crushed her head. Her relative brought her to the Prophet (ﷺ) while she was in her last breaths, and she was unable to speak. Allah's Messenger (ﷺ) asked her, "Who has hit you? So-and so?", mentioning somebody other than her murderer. She moved her head, indicating denial. The Prophet (ﷺ) mentioned another person other than the murderer, and she again moved her head indicating denial. Then he asked, "Was it so-and-so?", mentioning the name of her killer. She nodded, agreeing. Then Allah's Messenger (ﷺ); ordered that the head of that Jew be crushed between two stones.