It is prescribed for the Muslim to perform Tarawih prayer after ‘Isha on the first night of Ramadan, which is the night on which the new moon is sighted or the Muslims complete thirty days of Sha`ban.

Praying tarawih prayer in congregation in the mosque is better, but if a man prays tarawih on his own at home, or in congregation with his family, that is permissible.

There is nothing wrong with delaying `Isha’ prayer in Ramadan on condition that the Imam does not delay the prayer so much that he causes hardship to the members of the congregation.