I said: Messenger of Allah, I hunt with my trained dog, and with my untrained dog? He said: 'What you hunt with your trained dog, mention Allah's names (on it) and eat; and what you hunt with your untrained dog, and you find in a position that you slaughter it, then eat.
سَمِعْتُ أَبَا ثَعْلَبَةَ الْخُشَنِيَّ يَقُولُ قُلْتُ يَا رَسُولَ اللَّهِ إِنِّي أَصِيدُ بِكَلْبِي الْمُعَلَّمِ وَبِكَلْبِي الَّذِي لَيْسَ بِمُعَلَّمٍ قَالَ مَا صِدْتَ بِكَلْبِكَ الْمُعَلَّمِ فَاذْكُرِ اسْمَ اللَّهِ وَكُلْ وَمَا اصَّدْتَ بِكَلْبِكَ الَّذِي لَيْسَ بِمُعَلَّمٍ فَأَدْرَكْتَ ذَكَاتَهُ فَكُلْ