I did not find it in Ahmad’s Musnad with this wording, nor in any of the Six Books. The hadith appears in several places in the Musnad with different wordings—(4/256) (257, 258, 377, 379, 380)—none of which contain this wording.

Its meaning is found in al-Bukhārī (4/6), Muslim (6/56), and others, in the hadith of ʿAdī ibn Hātim, who said:

“I asked the Messenger of Allah (peace and blessings be upon him), saying, ‘We are a people who hunt with these dogs.’ He replied:

‘When you release your trained dogs and invoke Allah’s name, eat from whatever they catch for you, even if they kill it—unless the dog eats from it, for I fear that it caught it only for itself. If other dogs mingle with them, do not eat.’”

53 – (ʿAdī ibn Hātim asked the Prophet (peace and blessings be upon him), saying: “I release my dog and then find another dog with it, and I do not know which of the two caught the game.” The Prophet (peace and blessings be upon him) said: “Do not eat it, for you invoked Allah’s name over your dog but did not invoke it over the other one.”) p. 68

Authentic. The two Shaykhs and others recorded it from ʿAdī himself. It is also documented in al-Irwāʾ (2538).

54 – (The Prophet (peace and blessings be upon him) said: “If you shoot your arrow and find that it has killed the game, then eat it—unless you find that it has fallen into water, for you do not know whether the water killed it or your arrow.” Narrated by the two Sahihs.) p. 68

Authentic. The two Shaykhs and others recorded it from ʿAdī ibn Hātim, who said:

“I asked the Messenger of Allah (peace and blessings be upon him) about game.” He then related the hadith, adding after the words “your arrow”: “Invoke Allah’s name.” Al-Tirmidhī said: “This is a sound, authentic hadith.”

Al-Bukhārī’s version does not contain the words: “For you do not know…”