A quick google gives the below info. I think you're probably best off speaking to the employee to understand their request?
"Ongoing Until Ceremony
This timeline can stretch from one week to several months depending on family circumstances, available funds, and how elaborate the ceremony will be.
Igbo traditions sometimes include a two-phase burial process for prominent elders. The first burial happens soon after death. The second ceremony, called Ikwa Ozu, occurs months or years later as a grand celebration of the person's life and achievements.
Hausa-Fulani families, following Islamic law, usually complete burial within 24 hours of death. Relatives perform the ritual washing, wrap the deceased in simple white shrouds, and place them directly in the grave without a coffin.
Afterward, families may hold fidau prayers on the third, seventh, fortieth, or even hundredth day, depending on local and family traditions."
A quick google gives the below info. I think you're probably best off speaking to the employee to understand their request?
"Ongoing Until Ceremony
This timeline can stretch from one week to several months depending on family circumstances, available funds, and how elaborate the ceremony will be.
Igbo traditions sometimes include a two-phase burial process for prominent elders. The first burial happens soon after death. The second ceremony, called Ikwa Ozu, occurs months or years later as a grand celebration of the person's life and achievements.
Hausa-Fulani families, following Islamic law, usually complete burial within 24 hours of death. Relatives perform the ritual washing, wrap the deceased in simple white shrouds, and place them directly in the grave without a coffin.
Afterward, families may hold fidau prayers on the third, seventh, fortieth, or even hundredth day, depending on local and family traditions."