Salmān Farsi, a Companion of the Prophet, quotes the Prophet ﷺ as saying: “God would not like to see His servant holding out his arms pleading for help and turn him away empty handed.”
(AbūDāwūd, Tirmidhīand Ibn Mājah)
Ubādah ibn al-Şāmit quotes the Prophet as saying: “God shall answer the prayer (duā’) of any Muslim anywhere on earth, or He will protect him against contrasting harm, as long as he does not ask for something evil or for the break-up of kinship relations.” (Tirmidhī)
The Prophet is also reported as saying: “Prayers [duā’] shall be answered unless one asksfor something evil or the break-up of kinship relations, and as long as one does notbecome impatient.” When the Prophet was asked to explain how one becomesimpatient, he said: “One says, ‘I have prayed many times but I have had noresponse,’ then gives up hope and abandons praying [duā’] altogether.” [Muslim]
A fasting person has the best chance of his prayers being answered. AbūDāwūdal-Ţayālisī relates on the authority of Abdullāh ibn Umar that the Prophet said:“The prayer a fasting person says at the time when he is about to finish his fast shallbe answered.” Accordingly, Abdullāh ibn Umar, a learned Companion of theProphet, used to gather his family together when breaking the fast and pray.
Ibn Mājahalso relates a hadīth in which Abdullāh ibn Umar quoted the Prophetas saying: “On breaking the fast, the prayer of a fasting person is never turned down.”