Sahih Muslim 1929hBook 34, Hadith 8
وَحَدَّثَنَا مُحَمَّدُ بْنُ الْوَلِيدِ بْنِ عَبْدِ الْحَمِيدِ، حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، عَنْ سَعِيدِ بْنِ مَسْرُوقٍ، حَدَّثَنَا الشَّعْبِيُّ، قَالَ سَمِعْتُ عَدِيَّ بْنَ حَاتِمٍ، - وَكَانَ لَنَا جَارًا وَدَخِيلاً وَرَبِيطًا بِالنَّهْرَيْنِ - أَنَّهُ سَأَلَ النَّبِيَّ صلى الله عليه وسلم قَالَ أُرْسِلُ كَلْبِي فَأَجِدُ مَعَ كَلْبِي كَلْبًا قَدْ أَخَذَ لاَ أَدْرِي أَيُّهُمَا أَخَذَ . قَالَ " فَلاَ تَأْكُلْ فَإِنَّمَا سَمَّيْتَ عَلَى كَلْبِكَ وَلَمْ تُسَمِّ عَلَى غَيْرِهِ " .
I heard Adi b. Hatim say-and he was our neighbour, and our partner and co worker at Nahrain-that he asked Allah's Apostle (may peace he upon him) saying: I let off my dog and find another dog along with my dog and that (any one of them) catches the (game), but I do not know which one had caught it, whereupon he (the Holy Prophet) said: Then don't eat that, for you recited the name of Allah while letting off your dog and did not recite on the other.