“Qays did not live to meet Ibn Rawahah.”
I say: That is because he was martyred during the lifetime of the Prophet, peace and blessings be upon him, at the Battle of Mu'tah.
The other defect is the ambiguous “from” transmission of 'Umar ibn 'Ali, al-Muqaddami, who was greatly prone to concealment in transmission, as stated in al-Taqrib; see al-Tahdhib.
He was contradicted by 'Abdullah ibn Idris, who reported: from Isma'il, from Qays, who said: 'Umar said: The Messenger of Allah, peace and blessings be upon him, said to 'Abdullah ibn Rawahah:
“If only you would urge the mounts onward for us.”
He replied, “I have given up what I used to say ...” the hadith, adding:
The Messenger of Allah, peace and blessings be upon him, said:
“O Allah, have mercy on him.”
'Umar said, “It has become assured.”
Al-Hafiz al-Mizzi said:
“This is more likely.”
That is, the correct version is that it is narrated by Qays ibn Abi Hazim from 'Umar, and that it is a report of 'Umar, not a report of 'Abdullah ibn Rawahah. Qays heard from 'Umar; thus, the chain is continuous and authentic, praise be to Allah. For 'Abdullah ibn Idris—al-Awdi—was a trustworthy jurist, relied upon by the two Shaykhs. It was recorded by al-Nasa'i, no. 8250; al-Diya' in al-Ahadith al-Mukhtarah (1/381/264); and likewise by al-Daraqutni in al-Afrad, as cited in Kanz al-Ummal (13/449/37169).