On many occasions the Muslims addressed questions to the Prophet concerning Islamic beliefs and the Islamic way of life. An example of the many occasions when a revelation was revealed in response to such a question posed to the Prophet is Sura 4:11

Narrated Jabir: The Prophet and Abu Bakr came on foot to pay me a visit (during my illness) at Banu Salama's (dwellings). The Prophet found me unconscious, so he asked for water and performed the ablution from it and sprinkled some water over me. I came to my senses and said O Allah's apostle! What do you order me to do as regards my wealth?

So there was revealed 'Allah commands you as regards your children's (inheritance)' (4: 11). [Bukhari, VI, No. 101.]

The verse in question is concerned with inheritance and explains the rules of inheritance for children as follows:

God (thus) directs you as regards your children's (inheritance):

'To the male a portion equal to that of two females: if only daughters, two or more, their share is two-thirds of the inheritance. If only one, her share is half ...' (4:11).