Is it better to delay the 'Isha prayer in order to catch up with and participate in the funeral procession, or to perform the 'Isha prayer first?

If one misses the congregational prayer, there is no harm in prioritizing the funeral procession over the 'Isha prayer; in fact, it is more appropriate so as not to miss the reward of accompanying the funeral. The time for 'Isha extends, and it is recommended to delay it if one has missed the congregational prayer. One must, in the future, be diligent in catching the congregational prayer at the mosque.