Hujayyah bin Adi said: I heard Sayyiduna Ali (may Allah be pleased with him) when a man asked him about a cow, and he said: It is on behalf of seven people. He asked him about the horn, and he said: That makes no difference. He asked him about lameness, and he said: If it reaches the place of slaughter (that is, if it can walk on its own feet to the place of sacrifice). And the Messenger of Allah (peace and blessings be upon him) commanded us to examine the eye and the ear carefully. All of these chains are sahih (authentic). Although the two Shaykhs did not use Hujayyah bin Adi as evidence, he is among the senior companions of the Commander of the Believers, Ali (may Allah be pleased with him).