Answered by Sayyidi Habib Umar bin Hafiz (may Allah protect him and benefit us by him)
There is a shaykh teaching in our area. Can we benefit from him?
He must be someone of truthfulness (sidq) and taqwa. A sign of his truthfulness is that he praises the pious scholars of the Ummah and does not attack any of them. His taqwa can be gauged by looking at his dealings with women and with electronic devices.