Sayyiduna Jabir bin Abdullah (may Allah be pleased with them both) narrates that the Messenger of Allah (peace and blessings be upon him) said: "Land game is lawful for you as long as you do not hunt it yourselves or it is not hunted for you."
These are three thiqah (trustworthy) narrators who transmitted its chain correctly from Amr.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 9922