I want to spent time in Medina in Ramadan. My friend is asking to go in Jamath and leave family at home and he will look after them and he will keep his wife at my home (presently I am in Saudi).

Your question is unclear. Are you requiring the permissibility of going out in Jamaat?

If so, then, we wish to advise you that going out in Jamaat is a noble work and a great Sunnah of Rasulullah (Sallallaahu Alayhi Wasallam) and all the prophets. Every prophet of Allah invited their people to believe in Allah and in the Oneness of Allah. Hadhrat Ali (Radhiallaahu Anhu) said, 'If one person is guided through you, that is better than red camels (most prestigious commodity of that time)

You should consult a senior person, preferably an Aalim who is actively engaged in Tabligh. He will advise you according to your personal circumstances. The seniors in Da'awah and Tabligh encourage people to go out in the path of Allah, but also take into cognizance one's personal circumstances as well.

and Allah Ta'ala Knows Best

Mufti Ebrahim Desai