Conversation so far:
When did Abu Bakr's son-in-law Muhammad die?
Abu Bakr's son-in-law Muhammad died on Monday, 8 June 632, in Medina, at the age of 62 or 63, in the house of his wife Aisha.
What led to Abu Bakr's son-in-law Muhammad death?
A few months after the farewell pilgrimage, Abu Bakr's son-in-law Muhammad fell ill and suffered for several days with fever, head pain, and weakness.

Question: How long was he sick?
Self-contained rewrite: How long was Abu Bakr's son-in-law Muhammad sick?