On the authority of Shuʿbah, from Warqāʾ ibn ʿUmar, from ʿAmr ibn Dīnār, from ʿAṭāʾ ibn Yasār, from Abū Hurayrah, from the Prophet ﷺ, who said: "When the prayer has been established (the iqāmah has been called), there is no prayer except the obligatory one." (1)

867 - Qutaybah informed us, saying: Abū ʿAwānah narrated to us, from Saʿd ibn Ibrāhīm, from Ḥafṣ ibn ʿĀṣim, from Ibn Buḥaynah, who said: The morning prayer was established (the iqāmah was called), and the Messenger of Allah ﷺ saw a man praying while the mu'adhdhin was giving the iqāmah, so he said: "Are you praying the morning prayer as four (rakʿahs)?" (2)

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(1) Its chain of transmission is authentic. Muḥammad: he is Ibn Jaʿfar, and it is in "Al-Sunan al-Kubrā" under number (940).
It was also recorded by Aḥmad (9873), Muslim (710): (63), and Abū Dāwūd (1266) via the chain of Muḥammad ibn Jaʿfar, with this chain of transmission.
It was also recorded by Aḥmad (8379) and Muslim (710): (63) via two paths from Warqāʾ ibn ʿUmar, with it.
It preceded earlier via the chain of Zakariyyā ibn Isḥāq, from ʿAmr ibn Dīnār, with it.

(2) Its chain of transmission is authentic. Qutaybah: he is Ibn Saʿīd, and Abū ʿAwānah: he is al-Waḍḍāḥ ibn ʿAbd Allāh al-Yashkuri, and Ibn Buḥaynah: he is ʿAbd Allāh ibn Mālik, and Buḥaynah was his mother. Whoever named him Mālik ibn Buḥaynah has erred, as will come later. The ḥadīth is in "Al-Sunan al-Kubrā" under number (941).
It was recorded by Muslim (711): (66) from Qutaybah ibn Saʿīd, with this chain of transmission.
It was also recorded by Aḥmad (22926), al-Bukhārī (663), Muslim (711): (65), and Ibn Mājah (1153) via the chain of Ibrāhīm ibn Saʿd, from his father Saʿd ibn Ibrāhīm, with it.
It was also recorded by Aḥmad (22921) and (22928), al-Bukhārī (663), and the author in "Al-Kubrā" (942), via the chain of Shuʿbah, from Saʿd ibn Ibrāhīm, with it, and he named the Companion Mālik ibn Buḥaynah. Abū ʿAwānah and Ḥammād ibn Salamah followed him in that — as al-Ḥāfiẓ Ibn Ḥajar mentioned in "Fatḥ al-Bārī" 2/149 — and the ḥuffāẓ ruled that they erred in it in two places: one, that Buḥaynah was the mother of ʿAbd Allāh, not Mālik; and two, that the Companionship and narration belong to ʿAbd Allāh, not Mālik — and he is ʿAbd Allāh ibn Mālik ibn al-Qishb, and Buḥaynah was his mother. It was also recorded by Aḥmad (22927) via the chain of Muḥammad ibn ʿAbd al-Raḥmān ibn Thawbān, and (22934) via the chain of Muḥammad ibn ʿAlī ibn al-Ḥusayn ibn ʿAlī, both from ʿAbd Allāh ibn Mālik ibn Buḥaynah, with its like. And see the ḥadīth that follows after it.