Sahih Muslim
The Book Pertaining to the Merits of the Companions (Allah Be Pleased With Them) of the Holy Prophet (May Peace Be Upon Him) (Kitab Al-Fadail Al-Sahabah)
Book Number: 031 / Hadith Number: 5932
'Amir b. Sa'd reported oLi the authority of his father that Allah's Apostle (may peace be upon him) gathered for him on the Day of Uhud his parents when a polytheist had set fire to (i. e. attacked fiercely) the Muslims. Thereupon Allah's Apostle (may peace be upon him) said to him: (Sa'd), shoot an arrow, (Sa'd), may my mother and father be taken as ransom for you. I drew an arrow and I shot a featherless arrow at him aiming his side that lie fell down and his private parts were exposed. Allah's Messenger (may peace be upon him) laughed that I saw his front teeth.