Various masaail of Jamaat Salaah and Imaamat

Imaam informing the congregation that the salaah has to be repeated

Q: One day I was leading three people in zuhr prayer. In my second last rakaat I felt like something was coming out from my private part. I still continued with the prayer. After I finished I went to the toilet and I found it was mazi. I came back after I washed myself and made wudhu but the people we prayed together with were gone. I don't know where to find them because it was a market where we prayed. I don't know them at all. I then observed the prayer alone again. So what should I do about them?

Informing the congregation to repeat a salaah

Q: One day I was leading three people in asr prayer. In my second last rakaat I felt like something was coming from my private part. I continued with the prayer. After I finished I went to the toilet and I found it was mazi. I came back after I purified myself and I did my ablution but the people we prayed together were gone. I performed the prayer alone again. So what can I do about them?