The stern warning against abandoning Jumu'ah

It is narrated from Abu al-Ja'd al-Damri (may Allah be pleased with him) - who had the companionship of the Messenger (peace and blessings be upon him) - that the Messenger of Allah (peace and blessings be upon him) said: "Whoever abandons three Friday prayers out of laziness and negligence, Allah Almighty seals his heart."
This hadith is sahih (authentic) on the condition of Imam Muslim, but the two Shaykhs did not record it.

It is narrated from Sayyiduna Samurah bin Jundub (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Whoever abandons the Friday prayer without an excuse should give one dinar in charity, and if he cannot afford it, then half a dinar in charity."
The chain of this hadith is sahih (authentic), but (the two Shaykhs) did not record it because of the disagreement of Sa'id bin Bashir and Ayyub bin al-Ala', for both of them narrated it as mursal through the chain of Qatadah from Qudamah bin Wabarah.

It is narrated from Qudamah bin Wabarah that the Messenger of Allah (peace and blessings be upon him) said: "Whoever misses the Friday prayer without an excuse should give in charity one dirham or half a dirham, or one sa' of wheat or half a sa'."
These are the words of al-Anbari's hadith, and Shaykh Abu Bakr also mentioned it only as mursal.

Abdullah bin Ahmad bin Hanbal said: I heard my father (Imam Ahmad bin Hanbal) when he was asked about the narration of Hammam from Qatadah and the disagreement of Abu al-Ala' with him in it, and he said: In our view, Hammam has a stronger memory than Ayyub Abu al-Ala'.