What did the Prophet Muhammad (saw) tell Asma', daughter of Abu Bakr (Allah be pleased with him), to do in order to ensure that Allah would not calculate in her case?
 Asma', daughter of Abu Bakr (Allah be pleated with him), reported:                      The Messenger of Allah (may peace be upon him) said to me: Spend, and do not calculate, or otherwise Allah would also calculate in your case.