Hazrat Ash'ath, Hasan, and Hazrat Ibn Sirin say that when the time for the funeral prayer and the obligatory prayer comes together, the obligatory prayer should be performed first.

11668 - From Ash'ath, from Al-Hasan and Ibn Sirin, they said: If the funeral (is present) and the obligatory (prayer) (is due), one begins with the obligatory (prayer).

Hazrat Usman bin Abi Hind narrates that when the obligatory prayer and the funeral prayer were present together, Hazrat Umar bin Abdul Aziz would begin with the obligatory prayer.

Hazrat Mujahid says that the obligatory prayers will be started with.

Hazrat Ibn Aun says that when my son passed away, Hazrat Ibn Sirin said to me: If you have the strength, then take the funeral out at such a time that you first perform the funeral prayer and then the Asr prayer.

Hazrat Amr bin Haram narrates that Hazrat Jabir was asked whether the funeral prayer (when present) should be performed before the Maghrib prayer or after it? He replied that the funeral prayer should be performed first, then the Maghrib prayer should be offered.