What is the ruling on appointing one of us to organize affairs when we go out for da'wah, and the appointment is temporary for the duration of the da'wah trip?

The questioner : When we go out for da'wah, there is this, and praise be to Allah, the Salafiyyah there is different from almost anywhere else in the world in that they go out to call people to Allah (Mighty and Majestic) in almost every part of Yemen. So the Sunnah spread, and Shi'ism, innovations, and the Batiniyyah and others receded. So we are compelled, as long as we are on this trip, to appoint someone over us, as we were commanded in the hadith. Then, during this journey or during this trip, there is a type of organization in the affairs and so on. So is there anything in this that is contrary to the Shari'ah, for example, or are there no Shari'ah violations? And if the command of the leader is obligatory here, does he have certain specifications so that he is the leader among this group?

The Shaykh : I feel that your question contains several questions, and it is difficult for me to categorize them and answer them. So if you could briefly separate each question from the others?

The questioner : When we go out for da'wah, do we appoint one of us?

The Shaykh : This, this is mentioned in the Sunnah in the authentic hadith .