What is the ruling of Islamic law regarding a man who divorced his wife after a five-year absence during which he did not spend on her, and he now wishes to know if he is obligated to make up for the maintenance of those years?

Alimony is obligatory throughout these years unless the wife is disobedient (nashiz), and the Sharia court determines the matter of disobedience. The child's maintenance is also obligatory. The questioner is advised to strive to solve problems with his wife and not to initiate divorce due to the harm it entails, especially with the presence of a newborn.