The Iqāmah (1).

And in this chapter, there is a narration from Ibn ʿUmar.

The ḥadīth of Anas is a ḥasan ṣaḥīḥ ḥadīth.

And this is the view of some of the people of knowledge among the Companions of the Prophet, peace and blessings of Allah be upon him, and the Followers. And this is what Mālik, al-Shāfiʿī, Aḥmad, and Isḥāq hold.

29 — Chapter: What has been reported that the Iqāmah is said two by two

192 — Abū Saʿīd al-Ashajj narrated to us, he said: ʿUqbah ibn Khālid narrated to us, from Ibn Abī Laylā, from ʿAmr ibn Murrah, from ʿAbd al-Raḥmān ibn Abī Laylā, from ʿAbd Allāh ibn Zayd, who said: The adhān of the Messenger of Allah, peace and blessings of Allah be upon him, was in pairs, two by two, in both the adhān and the iqāmah (2).

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(1) A ṣaḥīḥ ḥadīth, reported by al-Bukhārī (603), Muslim (378), Abū Dāwūd (508) and (509), Ibn Mājah (729) and (730), al-Nasāʾī 2/3, and it is in al-Musnad (12001), and Ṣaḥīḥ Ibn Ḥibbān (1675), (1676), and (1678).
(2) Its narrators are trustworthy except Muḥammad ibn ʿAbd al-Raḥmān ibn Abī Laylā, for he is weak in memory, but he has been followed up, and there is much disagreement concerning him from ʿAbd al-Raḥmān ibn Abī Laylā, as we have explained in Musnad Aḥmad, in the ḥadīth of Muʿādh ibn Jabal, numbers (22027) and (22124). And the author pointed to some of this disagreement following the ḥadīth. And ʿAbd al-Raḥmān ibn Abī Laylā did not hear from ʿAbd Allāh ibn Zayd, as the author and others have said.
It was also reported by Ibn Abī Shaybah 1/206, Ibn Khuzaymah (380), and al-Dāraquṭnī 1/241, via the route of Muḥammad ibn ʿAbd al-Raḥmān ibn Abī Laylā, from ʿAmr ibn Murrah, with this chain.
And it has other routes; see them in al-Musnad (22027) and (22124), and see the two routes =