What is the ruling on someone who has not prayed 'Asr and finds the funeral prayer (Salat al-Janazah) being performed; should he pray it with them or go and perform the obligatory prayer?

The first is to prioritize the funeral prayer for fear of missing it, because it is well-known that if two prayers coincide, one begins with the one most feared to be missed. This is also due to the great virtue in it, for the Prophet, peace and blessings be upon him, said: "Whoever attends a funeral until the prayer is offered, will have a Qirat, and whoever attends until it is buried, will have two Qirats." It was asked: "What are the two Qirats?" He replied: "Like two great mountains."