“None of these hadiths states that the Prophet, peace and blessings be upon him, knew of this and approved it; yet we have related reports indicating that it was prohibited.”
Al-Hafiz commented after this: “Indeed, Ibn Abi Shaybah narrated in his Musannaf, through Abu Salamah from Jabir, something that indicates this. Al-Khattabi said: ‘It is possible that the sale of ummahat al-awlad was permitted, then the Prophet, peace and blessings be upon him, prohibited it near the end of his life, but that prohibition did not become widely known. When it reached Umar, he prohibited them from it.’”
I say: What appears to me is that Umar’s prohibition was the result of his own independent legal reasoning, not a prohibition transmitted to him from the Prophet, peace and blessings be upon him. This is because Ali, may Allah be pleased with him, explicitly stated that it was an opinion held by both Umar and himself. Abd al-Razzaq (13224) narrated with an authentic chain of transmission from Ubaydah al-Salmani, who said: I heard Ali say: “My opinion and Umar’s opinion concurred regarding ummahat al-awlad: that they should not be sold.” He then said: “Thereafter, I came to the view that they should be sold.” Ubaydah said: “I said to him: Your opinion and Umar’s opinion when united are dearer to me than your opinion alone when it differs.” Ali then laughed.
Al-Hafiz said: “This chain of transmission is counted among the most authentic chains.” Al-Bayhaqi also narrated it.
What I have mentioned is further supported by the fact that, had Umar possessed an explicit text to that effect, Ali, may Allah be pleased with him, would not have retracted from it. This is plainly evident.
Naturally, this does not preclude the possibility that the Prophet, peace and blessings be upon him, later issued a prohibition which Umar did not come across. Indeed, this is what appears from the totality of the hadiths reported on this subject: although their individual chains are not free of weakness, taken together they strengthen the case for prohibition. Among them is the route of Abu Salamah to which al-Hafiz referred earlier, for it is a strong corroborating report for it, despite al-Hafiz’s silence regarding it. The same applies to al-Busiri in Zawaid Ibn Majah (folio 156/2), who also stated that its wording