Al-Shaybani narrated from Ibn Abi Awfa (may Allah be pleased with him) that he said: On the day of Khaybar we were struck by severe hunger. He then mentioned the hadith. Al-Shaybani says: I met Sa'id bin Jubayr (may Allah have mercy on him) and mentioned this to him. He said that the Prophet (peace and blessings be upon him) "declared it unlawful for good, because it used to eat filth."
A group of the Companions (may Allah be pleased with them) knew that his (peace and blessings be upon him) prohibition of it was one of outright prohibition (tahrim).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19462