The arrival of the delegation of as-Sadif before the Messenger of Allah ﷺ in the Year 10 after the Hijrah (10 AH)
The event mentions that the delegation of as-Sadif came to the Messenger of Allah ﷺ in the Year 10 after the Hijrah (10 AH).

The event mentions that the delegation of as-Sadif came to the Messenger of Allah ﷺ in the Year 10 after the Hijrah (10 AH).
It falls within the stage of presenting Islam to the tribes and delegations in the late Meccan period.
In this year, the delegation of As-Sadif came to the Messenger of Allah ﷺ.
The available information only shows that a group from the tribe of as-Sadif came to the Prophet ﷺ in this year, without explaining what took place in the meeting or its outcome.
The tax collectors: We have learned from what has come before that the return of the Messenger of Allah ﷺ to Madinah was in the last days of the eighth year. As soon as the crescent moon of Muharram of year 9 AH appeared, the Messenger of Allah ﷺ sent the tax collectors to the tribes. Their list is as follows: 1 - Uyaynah ibn Hisn to Banu Tamim. 2 - Yazid ibn al-Husayn to Aslam and Ghifar. 3 - 'Abbad ibn Bashir al-Ashhali to Sulaym and Muzaynah.
It shows the continued arrival of delegations to the Prophet ﷺ in Year 10 after the Hijrah (10 AH).
It indicates the growing scope of presenting Islam to the tribes.
The delegation of as-Sadif was a Yemeni delegation from the tribes of Hadramawt. They came to the Prophet ﷺ in the Year of the Delegations, and they were more than ten men. They announced their Islam. The Prophet ﷺ then reminded them of proper greetings and taught them the times of prayer. Their visit was an example of tribes entering Islam, and of how delegations were not just a declaration of loyalty, but also gatherings of teaching and training, where those who came learned the manners and duties of the religion.
Stick to verified information and do not assert details that are not stated.
From the available information, only the arrival of the delegation is confirmed.