Imam Sha’bi (may Allah have mercy on him) says that I once asked Hazrat Ibn Umar (may Allah be pleased with them both),“Can one camel and one cow suffice for seven people?”He replied,“Sha’bi! Does it have seven lives?”I said,“Other companions (may Allah be pleased with them) say that the Noble Prophet (peace and blessings be upon him) appointed one cow and one camel for seven people.”Upon this, Hazrat Ibn Umar (may Allah be pleased with them both) asked a man,“O so-and-so! Is this the case?”He said,“Yes!”So Hazrat Ibn Umar (may Allah be pleased with them both) said,“I did not know about this.”