Hadith No: 1
Al-Khatib al-Baghdadi - Tarikh Baghdad (History of Baghdad)
Mention of those named Muhammad - Letter Jeem (ج) - Mention of those named Muhammad and their father's name, Ja'far
466 - Muhammad ibn Ja'far ibn Rashid, Abu Ja'far al-Farsi, nicknamed Luqluq, and originally from Balkh.
Volume: (2) - Page Number: (492)
466 - Abu Umar ibn Mahdi narrated to us, stating that Muhammad ibn Makhlad al-Attar narrated to us, who said: Muhammad ibn Ja'far Luqluq narrated to us, saying: Ubaydullah ibn Tamam narrated to us, who said: Dawud narrated to us from Amir from Jabir ibn Samurah, who said: "I heard the Messenger of Allah (peace be upon him and his holy progeny) say: 'This religion will remain mighty until there have been twelve caliphs.'" He said that the people raised their voices and murmured, and he said a word that was not clear, so I said to my father, "O Father, what did he say?" He replied: "He said, 'All of them are from Quraysh.'"

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Reference: Taareekh Baghdad Book 2

Hadith No: 2
Al-Khatib al-Baghdadi - Tarikh Baghdad (The History of Baghdad) - Chapter on the letter Yaa
Mention of those named Yunus - 7625: Yunus ibn Saabiq
Volume: (16) - Page Number: (513)
[The text is lengthy, so only the relevant excerpt is provided here]
7625 - Abu al-Hasan Ahmad ibn Muhammad ibn Ahmad ibn Musa ibn Harun ibn al-Salt al-Ahwazi narrated to us, saying: Abu al-Abbas Ahmad ibn Muhammad ibn Sa'id ibn 'Aqda al-Hafiz narrated to us orally, saying: Yunus ibn Saabiq al-Baghdadi narrated to us, saying: Hafs ibn Umar ibn Maymun narrated to us, saying: Malik ibn Maghul narrated to us, saying: Salih ibn Muslim narrated to us, from al-Shu'bi from Jabir ibn Samura, who said: "I heard the Messenger of Allah (peace be upon him and his holy progeny) say: 'There will be twelve commanders after me,' then he spoke of something that was hidden from me and said: 'All of them will be from Quraysh.'"....

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Reference: Taareekh Baghdad Book 16